Update README.md

README.md

@@ -195,26 +195,94 @@ a: No such file or directory
 上述各模块通过主程序（main）进行调用，系统模块图如下。
 ![](流程图.png)
 各模块的主要功能如下：
+![](main.drawio.svg)
 
-#####main
+##### main
 系统主函数模块，显示菜单，根据用户选择的菜单命令，执行相关操作。
 
-#####init
+##### init
 系统初始化。
 
-#####display_menu
+##### display_menu
 显示菜单命令。
 
-####详细设计
+#### 详细设计
-![](text.drawio.svg)
+####main
+Step 1: 初始化
+Step 2: 根据用户选择的命令执行对应的操作
+Step 2.1: 显示菜单
+Step 2.2: 选择菜单命令 c
+Step 2.3: if c == CMD_READ then 读取数据
+Step 2.4: if c == CMD_SAVE then 保存数据
+Step 2.5: if c == CMD_PRINT then 打印数据
+Step 2.6: if c == CMD_QUERY then 查询数据
+Step 2.7: if c == CMD_INSERT then 添加数据
+Step 2.8: if c == CMD_UPDATE then 修改数据
+Step 2.9: if c == CMD_DELETE then 删除数据
+Step 2.10: if c == CMD_SORT then 数据排序
+Step 2.11: if c == CMD_CHART then 导出图表
+Step 2.12: if c == CMD_QUIT then 退出程序
+![](主函数流程图.drawio.svg)
 
 
-#####add_data
+##### save_data
-Step 1: if 数据库满 then 提示数据库满并结束
+step1.输入保存数据，并判断文件是否为空
-Step 2: 输入零件编号
+step2.若文件不空打印保存学生学号、姓名、成绩
-Step 3: if 学生成绩已存在 then 提示学生成绩已存在并结束
+step3.保存成功关闭文件
-Step 4: 输入学生名和学科
+![](保存函数流程图.drawio.svg)
-Step 5: 添加新成绩到数据
-Step 6: 提示添加成功
-![](流程图（2）.png)
 
+
+##### update_data
+STEP1:输入学生学号
+STEP2 :判断是否查找成功
+STEP3:若找到，修改学生学号，学生姓名，学生成绩，结束
+STEP4:若未找到，输出学生不存在，结束
+![](update.drawio.svg)
+
+#### query_data
+STEP1:输入学生学号
+STEP2 :判断是否查找成功
+STEP3:若找到，修改学生学号，学生姓名，学生成绩，结束
+STEP4:若未找到，输出学生不存在，结束
+![](test.drawio.svg)
+
+
+##### printf_data
+step1.输入"number,name,score"
+step2.循环打印学生学号、姓名和成绩
+![](打印函数流程图.drawio.svg)
+
+##### sort_data
+step1.查找所有学生成绩
+step.2 对学生成绩进行排序
+![](sort_data.drawio.svg)
+
+##### make_chart
+生成表格
+![](make_chart.drawio.svg)
+
+##### delete_data
+step.1 输入学生姓名
+step.2查找学生成绩
+step.3找到后删除
+![](delete_data.drawio.svg)
+
+##### read_data
+step1.输入文件名并打开文件
+step2.判断文件是否为空
+step3.若不空进行读取与记录
+![](读取函数流程图.drawio.svg)
+
+##### add_data
+Step 1: 输入学生姓名和成绩
+Step 2: if 学生成绩已存在 then 提示学生成绩已存在并结束
+Step 3: 输入学生名和成绩
+Step 4: 添加新成绩到数据
+Step 5: 提示添加成功
+![](add.drawio.svg)
+
+
+
+在本次小组作业中，我深刻体会到了团队合作的重要性。以下是我的感悟：
+本次团队合作可以促进个人成长。在小组作业中，每个人都需要承担一定的责任和任务，通过合作可以让每个人都学会如何与他人合作，如何分配任务和协调工作。这些经验对于个人的成长和职业发展都非常重要。还可以锻炼沟通能力，每个人都需要与其他人进行沟通和协调，从而保证任务的顺利完成。通过沟通和协调，从而让整个团队更加和谐，并营造了积极学习的良好风气。
+本次小组作业的顺利完成离不开大家的良好合作。在此特意感谢组内各成员的积极配合。同时向随时为我们答疑的庄波老师和不辞辛苦的谢玉华老师致以最深的感谢！

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+        <path d="M 248.88 270 L 241.88 273.5 L 243.63 270 L 241.88 266.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 80 230 L 160 270 L 80 310 L 0 270 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 270px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                是否查找成功
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="274" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    是否查找成功
+                </text>
+            </switch>
+        </g>
+        <path d="M 80 440 L 80 493.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 498.88 L 76.5 491.88 L 80 493.63 L 83.5 491.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="20" y="380" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 410px; margin-left: 21px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                删除信息
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="414" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    删除信息
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="80" cy="540" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 540px; margin-left: 21px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                结束
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="544" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    结束
+                </text>
+            </switch>
+        </g>
+        <path d="M 310 300 L 310 460 Q 310 470 300 470 L 86.37 470" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 81.12 470 L 88.12 466.5 L 86.37 470 L 88.12 473.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="250" y="240" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 270px; margin-left: 251px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学生不存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="310" y="274" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学生不存在
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

main.drawio.svg

@@ -0,0 +1,321 @@
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+    <defs/>
+    <g>
+        <path d="M 204 340 L 126.37 340" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 340 L 128.12 336.5 L 126.37 340 L 128.12 343.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 160 340 L 160 130 Q 160 120 150 120 L 126.37 120" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 120 L 128.12 116.5 L 126.37 120 L 128.12 123.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 160 340 L 160 440 Q 160 450 150 450 L 126.37 450" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 450 L 128.12 446.5 L 126.37 450 L 128.12 453.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 160 340 L 160 545 Q 160 555 150 555 L 126.37 555" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 555 L 128.12 551.5 L 126.37 555 L 128.12 558.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 160 340 L 160 240 Q 160 230 150 230 L 126.37 230" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 121.12 230 L 128.12 226.5 L 126.37 230 L 128.12 233.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 55 Q 360 45 370 45 L 413.63 45" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 45 L 411.88 48.5 L 413.63 45 L 411.88 41.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 120 Q 360 110 370 110 L 413.63 110" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 110 L 411.88 113.5 L 413.63 110 L 411.88 106.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 200 Q 360 190 370 190 L 413.63 190" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 190 L 411.88 193.5 L 413.63 190 L 411.88 186.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 280 Q 360 270 370 270 L 413.63 270" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 270 L 411.88 273.5 L 413.63 270 L 411.88 266.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 324 340 L 413.63 340" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 340 L 411.88 343.5 L 413.63 340 L 411.88 336.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 410 Q 360 420 370 420 L 413.63 420" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 420 L 411.88 423.5 L 413.63 420 L 411.88 416.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 485 Q 360 495 370 495 L 413.63 495" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 495 L 411.88 498.5 L 413.63 495 L 411.88 491.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 560 Q 360 570 370 570 L 413.63 570" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 570 L 411.88 573.5 L 413.63 570 L 411.88 566.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 360 340 L 360 640 Q 360 650 370 650 L 413.63 650" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 418.88 650 L 411.88 653.5 L 413.63 650 L 411.88 646.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="204" y="310" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 340px; margin-left: 205px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                main
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="264" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    main
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="200" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 230px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                display_menu
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="234" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    display_menu
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="310" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 340px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_choice
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_choice
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="420" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 450px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                confirm
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="454" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    confirm
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="90" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 120px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                init
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="124" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    init
+                </text>
+            </switch>
+        </g>
+        <rect x="420" y="0" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 30px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                read_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="34" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <rect x="420" y="80" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 110px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                save_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="114" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <rect x="420" y="160" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 190px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                print_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="194" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    print_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 540 270 L 667 270 Q 677 270 677 280 L 677 533.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 677 538.88 L 673.5 531.88 L 677 533.63 L 680.5 531.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="420" y="240" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 270px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="274" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 540 340 L 667 340 Q 677 340 677 350 L 677 533.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 677 538.88 L 673.5 531.88 L 677 533.63 L 680.5 531.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="420" y="310" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 340px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                add_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    add_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 540 420 L 667 420 Q 677 420 677 430 L 677 533.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 677 538.88 L 673.5 531.88 L 677 533.63 L 680.5 531.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="420" y="390" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 420px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                up_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="424" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    up_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 540 495 L 667 495 Q 677 495 677 505 L 677 533.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 677 538.88 L 673.5 531.88 L 677 533.63 L 680.5 531.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="420" y="465" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 495px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                delete_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="499" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    delete_data
+                </text>
+            </switch>
+        </g>
+        <rect x="420" y="540" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 570px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                sort_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="574" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    sort_data
+                </text>
+            </switch>
+        </g>
+        <rect x="420" y="620" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 650px; margin-left: 421px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="480" y="654" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_data
+                </text>
+            </switch>
+        </g>
+        <rect x="0" y="525" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 555px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                quit
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="559" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    quit
+                </text>
+            </switch>
+        </g>
+        <rect x="617" y="540" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 570px; margin-left: 618px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                find
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="677" y="574" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    find
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

make_chart.drawio.svg

@@ -0,0 +1,87 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="421px" viewBox="-0.5 -0.5 121 421" content="&lt;mxfile&gt;&lt;diagram id=&quot;M0elFYgwmzIgFOTymuCT&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 60 80 L 60 113.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 118.88 L 56.5 111.88 L 60 113.63 L 63.5 111.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="60" cy="40" rx="50" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 40px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 180 L 60 233.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 238.88 L 56.5 231.88 L 60 233.63 L 63.5 231.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="120" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 150px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                生成图表
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="154" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    生成图表
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 300 L 60 333.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 338.88 L 56.5 331.88 L 60 333.63 L 63.5 331.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="240" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 270px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                用图表方式对库存学生成绩进行显示
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="274" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    用图表方式对库存学生成绩进行显示
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="60" cy="380" rx="57.5" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 113px; height: 1px; padding-top: 380px; margin-left: 4px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                结束
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="384" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    结束
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

sort_data.drawio.svg

@@ -0,0 +1,87 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="471px" viewBox="-0.5 -0.5 121 471" content="&lt;mxfile&gt;&lt;diagram id=&quot;X3wpMgDmJxcUVlLBrr11&quot; name=&quot;第 1 页&quot;&gt;zVZNr5swEPw1ewfMh32EhLSXd8qhx8oKLiAZHDlOSN6vrxdMCIJXVe1r0gusx7Nez3qQAbJprl80P1ZvqhASAq+4AtlCEFAS2CcCtwGIYjoApa6LAfInYF+/Cwd6Dj3XhTjNiEYpaerjHDyothUHM8O41qqb034oOa965KVYAPsDl0v0W12YyskKkgn/KuqyGiv7MRtmGj6SnZJTxQvVPUAkB7LRSpkhaq4bIbF3Y1+GvN0Hs/eNadGa30kIh4QLl2enze3L3EaxorDa3bBVrX1llWmkHfk2HOjI+XAHDjqpsz44lqtiuC6FY5G7eusaoRph9M1StJDc1Jf56tydX3nnTRJt4FSuKw4Wik9Km+8FN3wpXUprKVTcVbUR+yPvBXTW1GtduAhtxPXXfVgqdAmB5yzhvonYDbvJYP5IqR7MRb2/70nyGheQpQuiJ7mALBXnMbAdpBEGlEGWu8A2GKc2GOcRpFtIY8gTYCHykUOBeYhkGaRs0bl/bx2fza0TkBXvBCveiT/BO/Q13omW3omf5J1oxTvWFzvI2B9aBpGBnAC1/OQhKwJqV7YIhWwHLMMg9ZGfh5hOc+RkHtKQTDHG9LBfxxZNgYZ9iRxYv9UsRfLrfUqiJ/o0Xjm1vv+M9Ie1xaP5ny6AcK07n3QD2OH0j9HPPfyokfwn&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 60 80 L 60 163.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 168.88 L 56.5 161.88 L 60 163.63 L 63.5 161.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="60" cy="40" rx="50" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 40px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                sort_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    sort_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 230 L 60 283.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 288.88 L 56.5 281.88 L 60 283.63 L 63.5 281.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="170" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 200px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                查找所有学生成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="204" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    查找所有学生成绩
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 350 L 60 383.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 388.88 L 56.5 381.88 L 60 383.63 L 63.5 381.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="290" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 320px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                对所有学生成绩按照学号进行从小到大的排序
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="324" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    对所有学生成绩按照学号进行从小到大的排序
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="60" cy="430" rx="50" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 430px; margin-left: 11px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                结束
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="434" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    结束
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

test.drawio.svg

@@ -0,0 +1,131 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="341px" height="521px" viewBox="-0.5 -0.5 341 521" content="&lt;mxfile&gt;&lt;diagram id=&quot;HFc2GKX1_PiRei40295z&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 80 60 L 80 93.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 80 98.88 L 76.5 91.88 L 80 93.63 L 83.5 91.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="80" cy="30" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 30px; margin-left: 21px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="34" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 78.33 160 L 77.51 174.79" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 77.22 180.03 L 74.11 172.85 L 77.51 174.79 L 81.1 173.24 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="20" y="100" width="120" height="60" rx="9" ry="9" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 130px; margin-left: 21px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学生学号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="80" y="134" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学生学号
+                </text>
+            </switch>
+        </g>
+        <path d="M 150 220 L 213.63 220" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 218.88 220 L 211.88 223.5 L 213.63 220 L 211.88 216.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 260 L 75 293.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 298.88 L 71.5 291.88 L 75 293.63 L 78.5 291.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 75 180 L 150 220 L 75 260 L 0 220 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 220px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                是否查找成功
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="75" y="224" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    是否查找成功
+                </text>
+            </switch>
+        </g>
+        <path d="M 280 250 L 280 390 Q 280 400 270 400 L 86.37 400" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 81.12 400 L 88.12 396.5 L 86.37 400 L 88.12 403.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="220" y="190" width="120" height="60" rx="9" ry="9" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 220px; margin-left: 221px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学生不存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="280" y="224" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学生不存在
+                </text>
+            </switch>
+        </g>
+        <path d="M 75 360 L 75 453.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 75 458.88 L 71.5 451.88 L 75 453.63 L 78.5 451.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="15" y="300" width="120" height="60" rx="9" ry="9" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 330px; margin-left: 16px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输出学生学号
+                                <br/>
+                                输出学生姓名
+                                <br/>
+                                输出学生成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="75" y="334" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输出学生学号输出学生姓名输出学生成绩...
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="75" cy="490" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 490px; margin-left: 16px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                结束
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="75" y="494" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    结束
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

update.drawio.svg

@@ -0,0 +1,131 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="331px" height="631px" viewBox="-0.5 -0.5 331 631" content="&lt;mxfile&gt;&lt;diagram id=&quot;D5uggZ1uVChHXlM6sn9y&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 60 70 L 60 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 108.88 L 56.5 101.88 L 60 103.63 L 63.5 101.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="60" cy="35" rx="60" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 35px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                update_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    update_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 150 L 60 203.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 208.88 L 56.5 201.88 L 60 203.63 L 63.5 201.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="110" width="120" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 130px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学生学号
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="134" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学生学号
+                </text>
+            </switch>
+        </g>
+        <path d="M 59.5 290 L 59.5 360 Q 59.5 370 59.5 380 L 59.5 393.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 59.5 398.88 L 56 391.88 L 59.5 393.63 L 63 391.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 120 249.5 L 203.63 249.5" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 208.88 249.5 L 201.88 253 L 203.63 249.5 L 201.88 246 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 60 210 L 115 250 L 60 290 L 5 250 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 250px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                是否查找成功
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="254" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    是否查找成功
+                </text>
+            </switch>
+        </g>
+        <path d="M 270 280 L 270 500 Q 270 510 260 510 L 66.37 510" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 61.12 510 L 68.12 506.5 L 66.37 510 L 68.12 513.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="210" y="220" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 250px; margin-left: 211px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                学生不存在
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="270" y="254" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    学生不存在
+                </text>
+            </switch>
+        </g>
+        <path d="M 60 450 L 60 543.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 60 548.88 L 56.5 541.88 L 60 543.63 L 63.5 541.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="0" y="390" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 420px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入学生学号
+                                <br/>
+                                输入学生姓名
+                                <br/>
+                                输入学生成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="424" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入学生学号输入学生姓名输入学生成绩...
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="60" cy="590" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 590px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                结束
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="60" y="594" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    结束
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

主函数流程图.drawio.svg

@@ -0,0 +1,890 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="527px" height="1711px" viewBox="-0.5 -0.5 527 1711" content="&lt;mxfile&gt;&lt;diagram id=&quot;WHu7MOl-uRi_Zosk1kcO&quot; name=&quot;第 1 页&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 73 70 L 73 93.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 98.88 L 69.5 91.88 L 73 93.63 L 76.5 91.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="73" cy="35" rx="45" ry="35" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 88px; height: 1px; padding-top: 35px; margin-left: 29px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                main
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    main
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 310 L 73 343.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 348.88 L 69.5 341.88 L 73 343.63 L 76.5 341.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="13" y="270" width="120" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 25 270 L 25 310 M 121 270 L 121 310" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 94px; height: 1px; padding-top: 290px; margin-left: 26px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                display_menu
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    display_menu
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 230 L 73 263.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 268.88 L 69.5 261.88 L 73 263.63 L 76.5 261.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="13" y="190" width="120" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 25 190 L 25 230 M 121 190 L 121 230" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 94px; height: 1px; padding-top: 210px; margin-left: 26px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c=make_choice
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="214" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c=make_choice
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 140 L 73 183.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 188.88 L 69.5 181.88 L 73 183.63 L 76.5 181.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="13" y="100" width="120" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 25 100 L 25 140 M 121 100 L 121 140" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 94px; height: 1px; padding-top: 120px; margin-left: 26px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                init
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="124" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    init
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 420 L 73 453.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 458.88 L 69.5 451.88 L 73 453.63 L 76.5 451.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 385 L 331.63 385" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 385 L 329.88 388.5 L 331.63 385 L 329.88 381.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 350 L 145.5 385 L 73 420 L 0.5 385 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 385px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_READ
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="389" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_READ
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 760 L 73 793.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 798.88 L 69.5 791.88 L 73 793.63 L 76.5 791.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 725 L 331.63 725" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 725 L 329.88 728.5 L 331.63 725 L 329.88 721.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 690 L 145.5 725 L 73 760 L 0.5 725 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 725px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_QUERY
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="729" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_QUERY
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 870 L 73 903.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 908.88 L 69.5 901.88 L 73 903.63 L 76.5 901.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 835 L 331.63 835" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 835 L 329.88 838.5 L 331.63 835 L 329.88 831.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 800 L 145.5 835 L 73 870 L 0.5 835 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 835px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_INSERT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="839" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_INSERT
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 980 L 73 1023.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 1028.88 L 69.5 1021.88 L 73 1023.63 L 76.5 1021.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 945 L 331.63 945" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 945 L 329.88 948.5 L 331.63 945 L 329.88 941.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 910 L 145.5 945 L 73 980 L 0.5 945 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 945px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_UPDATE
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="949" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_UPDATE
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 1320 L 73 1353.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 1358.88 L 69.5 1351.88 L 73 1353.63 L 76.5 1351.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 1285 L 331.63 1285" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 1285 L 329.88 1288.5 L 331.63 1285 L 329.88 1281.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 1250 L 145.5 1285 L 73 1320 L 0.5 1285 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 1285px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_CHART
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="1289" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_CHART
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 1540 L 73 1573.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 1578.88 L 69.5 1571.88 L 73 1573.63 L 76.5 1571.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 1505 L 508 1505 Q 518 1505 518 1495 L 518 680 Q 518 670 518 660 L 518 170 Q 518 160 508 160 L 74.37 160" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 69.12 160 L 76.12 156.5 L 74.37 160 L 76.12 163.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 1470 L 145.5 1505 L 73 1540 L 0.5 1505 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 1505px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                确认退出
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="1509" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    确认退出
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 530 L 73 568.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 573.88 L 69.5 566.88 L 73 568.63 L 76.5 566.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 495 L 331.63 495" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 495 L 329.88 498.5 L 331.63 495 L 329.88 491.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 460 L 145.5 495 L 73 530 L 0.5 495 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 495px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_SAVE
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="499" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_SAVE
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 1430 L 73 1463.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 1468.88 L 69.5 1461.88 L 73 1463.63 L 76.5 1461.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 1395 L 321.63 1395" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 326.88 1395 L 319.88 1398.5 L 321.63 1395 L 319.88 1391.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 1360 L 145.5 1395 L 73 1430 L 0.5 1395 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 1395px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_QUIT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="1399" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_QUIT
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 645 L 73 683.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 688.88 L 69.5 681.88 L 73 683.63 L 76.5 681.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 610 L 335.63 610" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 340.88 610 L 333.88 613.5 L 335.63 610 L 333.88 606.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 575 L 145.5 610 L 73 645 L 0.5 610 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 610px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_PRINT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="614" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_PRINT
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 1100 L 73 1133.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 1138.88 L 69.5 1131.88 L 73 1133.63 L 76.5 1131.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 1065 L 331.63 1065" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 1065 L 329.88 1068.5 L 331.63 1065 L 329.88 1061.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 1030 L 145.5 1065 L 73 1100 L 0.5 1065 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 1065px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_DELETE
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="1069" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_DELETE
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 1210 L 73 1243.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 1248.88 L 69.5 1241.88 L 73 1243.63 L 76.5 1241.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 145.5 1175 L 331.63 1175" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 336.88 1175 L 329.88 1178.5 L 331.63 1175 L 329.88 1171.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 73 1140 L 145.5 1175 L 73 1210 L 0.5 1175 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 143px; height: 1px; padding-top: 1175px; margin-left: 2px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                c == CMD_SORT
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="1179" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    c == CMD_SORT
+                </text>
+            </switch>
+        </g>
+        <path d="M 73 1620 L 73 1653.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 73 1658.88 L 69.5 1651.88 L 73 1653.63 L 76.5 1651.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="13" y="1580" width="120" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 25 1580 L 25 1620 M 121 1580 L 121 1620" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 94px; height: 1px; padding-top: 1600px; margin-left: 26px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                quit
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="1604" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    quit
+                </text>
+            </switch>
+        </g>
+        <rect x="20.5" y="1660" width="105" height="50" rx="7.5" ry="7.5" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 103px; height: 1px; padding-top: 1685px; margin-left: 22px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                结束
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="73" y="1689" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    结束
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="430" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 445px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="449" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="540" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 555px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="559" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="660" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 675px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="679" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="760" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 775px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="779" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="880" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 895px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="899" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="1000" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1015px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="1019" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="1110" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1125px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="1129" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="1220" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1235px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="1239" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="1320" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1335px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="1339" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+        <rect x="43" y="1430" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1445px; margin-left: 58px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="58" y="1449" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 385 L 511.63 385" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 385 L 509.88 388.5 L 511.63 385 L 509.88 381.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="360" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 385px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                read_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="389" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 1175 L 511.63 1175" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 1175 L 509.88 1178.5 L 511.63 1175 L 509.88 1171.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="1150" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 1175px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                sort_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="1179" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    sort_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 610 L 511.63 610" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 610 L 509.88 613.5 L 511.63 610 L 509.88 606.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="585" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 610px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                print_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="614" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    print_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 495 L 511.63 495" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 495 L 509.88 498.5 L 511.63 495 L 509.88 491.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="470" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 495px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                save_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="499" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 725 L 511.63 725" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 725 L 509.88 728.5 L 511.63 725 L 509.88 721.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="700" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 725px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                query_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="729" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    query_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 1285 L 511.63 1285" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 1285 L 509.88 1288.5 L 511.63 1285 L 509.88 1281.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="1260" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 1285px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                make_chart
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="1289" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    make_chart
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 835 L 511.63 835" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 835 L 509.88 838.5 L 511.63 835 L 509.88 831.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="810" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 835px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                add_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="839" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    add_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 945 L 511.63 945" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 945 L 509.88 948.5 L 511.63 945 L 509.88 941.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="920" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 945px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                update_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="949" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    update_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 448 1065 L 511.63 1065" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 1065 L 509.88 1068.5 L 511.63 1065 L 509.88 1061.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <rect x="338" y="1040" width="110" height="50" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 1065px; margin-left: 339px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                delete_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="1069" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    delete_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 458 1395 L 511.63 1395" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 516.88 1395 L 509.88 1398.5 L 511.63 1395 L 509.88 1391.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 318 1425 L 338 1365 L 468 1365 L 448 1425 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 1395px; margin-left: 319px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                命令错误，请重新输入
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="393" y="1399" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    命令错误，请重新输入
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="360" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 375px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="379" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="470" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 485px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="489" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="585" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 600px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="604" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="700" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 715px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="719" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="810" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 825px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="829" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="920" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 935px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="939" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="1040" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1055px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="1059" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="1140" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1155px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="1159" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="1260" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1275px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                Y
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="1279" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    Y
+                </text>
+            </switch>
+        </g>
+        <rect x="223" y="1365" width="30" height="30" fill="none" stroke="none" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1380px; margin-left: 238px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: nowrap;">
+                                N
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="238" y="1384" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    N
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

保存函数伪代码

@@ -0,0 +1,8 @@
+INPUT 保存数据
+printf 请输入文件名
+IF 文件为空  return
+ELSE
+DO printf
+stu[i].number,stu[i].name,stu[i].score 
+END
+THEN 关闭文件

保存函数流程图.drawio.svg

@@ -0,0 +1,146 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="291px" height="411px" viewBox="-0.5 -0.5 291 411" content="&lt;mxfile&gt;&lt;diagram id=&quot;BBg_SUu6cvkHx15Np4KP&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 65 50 L 65 73.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 65 78.88 L 61.5 71.88 L 65 73.63 L 68.5 71.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="65" cy="25" rx="65" ry="25" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 128px; height: 1px; padding-top: 25px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                save_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="29" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    save_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 65 120 L 65 143.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 65 148.88 L 61.5 141.88 L 65 143.63 L 68.5 141.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 5 120 L 25 80 L 125 80 L 105 120 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 100px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                puts("保存数据“）
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="104" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    puts("保存数据“）
+                </text>
+            </switch>
+        </g>
+        <path d="M 66.42 219.05 L 67.44 243.64" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 67.66 248.88 L 63.87 242.03 L 67.44 243.64 L 70.87 241.74 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 65 150 L 117.5 185 L 65 220 L 12.5 185 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 103px; height: 1px; padding-top: 185px; margin-left: 14px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                fp==NULL
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="189" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    fp==NULL
+                </text>
+            </switch>
+        </g>
+        <path d="M 117.5 185 L 173.63 185" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 178.88 185 L 171.88 188.5 L 173.63 185 L 171.88 181.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 186px; margin-left: 149px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 11px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
+                                YES
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="149" y="189" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="11px" text-anchor="middle">
+                    YES
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="235" cy="185" rx="55" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 185px; margin-left: 181px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                perror(filename)
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="235" y="189" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    perror(filename)
+                </text>
+            </switch>
+        </g>
+        <path d="M 65 310 L 65 343.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 65 348.88 L 61.5 341.88 L 65 343.63 L 68.5 341.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 5 310 L 25 250 L 125 250 L 105 310 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 280px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                打印学号，姓名
+                                <br/>
+                                成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="284" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打印学号，姓名
+成绩
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="65" cy="380" rx="57.5" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 113px; height: 1px; padding-top: 380px; margin-left: 9px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                fclose(fp)
+                                <br/>
+                                保存成功
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="384" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    fclose(fp)...
+                </text>
+            </switch>
+        </g>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

学生成绩管理系统.cc

@@ -14,13 +14,13 @@ static int num_parts = 0;
 
 //定义常量
 #define CMD_QUIT   0
+#define CMD_READ   1
+#define CMD_SAVE   2
+#define CMD_PRINT  3
 #define CMD_QUERY  4
 #define CMD_INSERT 5
 #define CMD_UPDATE 6
 #define CMD_DELETE 7
-#define CMD_READ 1
-#define CMD_SAVE 2
-#define CMD_PRINT 3
 #define CMD_SORT   8 
 #define CMD_CHART  9
 // 菜单命令的编号

打印函数伪代码

@@ -0,0 +1,4 @@
+INPUT number,name,score
+DO
+printf stu[i].number,stu[i].name,stu[i].score
+END

打印函数流程图.drawio.svg

@@ -0,0 +1,55 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="131px" height="271px" viewBox="-0.5 -0.5 131 271" content="&lt;mxfile&gt;&lt;diagram id=&quot;6ED4M3rvA-dtCFNJMws8&quot; name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 65 60 L 65 103.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 65 108.88 L 61.5 101.88 L 65 103.63 L 68.5 101.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="65" cy="30" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 30px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                print_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="34" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    print_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 65 160 L 65 203.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 65 208.88 L 61.5 201.88 L 65 203.63 L 68.5 201.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 160 L 20 110 L 130 110 L 110 160 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 128px; height: 1px; padding-top: 135px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输出学生学号、姓名
+                                <br/>
+                                成绩
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="65" y="139" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输出学生学号、姓名
+成绩
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="65" cy="240" rx="57.5" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>

读取函数伪代码

@@ -0,0 +1,7 @@
+INPUT 读取数据
+printf 请输入文件名
+IF 文件为空 return 
+ELSE 
+DO fscanf(fp)
+stu[i].number,stu[i].name,stu[i].score END
+THEN 关闭文件

读取函数流程图.drawio.svg

@@ -0,0 +1,112 @@
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="301px" height="601px" viewBox="-0.5 -0.5 301 601" content="&lt;mxfile&gt;&lt;diagram id=&quot;ZiNlvKpYBc2007Mh1NEG&quot; name=&quot;Page-1&quot;&gt;3Zjdb5swEMD/Gr9WgDEfj01CtoduqlRNW58mL7gByWBknCbZXz8TbD5iElCaplNfEt/5/HF3P84GAOfZ7gvHRfKNxYQCx4p3AC6A4/i+L38rxb5WQDeoFWuexrXKbhVP6V+ilJbSbtKYlD1DwRgVadFXrliek5Xo6TDnbNs3e2G0v2qB18RQPK0wNbU/01gktTZAVqv/StJ1ole2LdWTYW2sFGWCY7btqGAE4JwzJupWtpsTWsVOx6UetzzR22yMk1xMGeDWA14x3Sjf1L7EXjtLYum7EnOWy79ZIjIqJVs2a/PK5uQOlKpkG75SVmoVgfmaKCvYeC+pISwjgu+lCScUi/S1PztW+Vs3dq2LsqG8HPbYMTzmBMe/Yyyw6TqlEqnK422SCvJU4IMDWwn1UBReCRdkdz4Opof6oVBE6EdCiduWL1vjn3TY0sy9JSTex0AATQjQjSCApsdRAGYRCCGIEAgQuEcg8kDogcAHkQtmMzDzqq7QAsHCCI98jIuqKT3GlBLK1hxnMjAF4ancHOHHfY9txxhbL+mO6Br4Pqw1YI3B5l4BtuBjYEMmbP6NYEMDsEmuQgXbbA4CawC2T8ZYcEPG9LyTmSK7VPySbesOKem507OoXLK0sNdCLndVD3IR0orng8L2fK1oBx+k3uhOhg7Ky9D2TbTDG6HtG2i/FNU/XHz/8fBgJIEnLPuzKW9znqIef443wJ81wJ93Bf7CCTXulleLfiiQP/FRvEYobHvwqL1fVlWuOmqXVd37dNWvuZepmLtDR6zzTvc5e+B6Y/CXx/fVm5CUVhSXZboaroh2px621XG0Ivbr4UgtvFrZs08kZXLdU0MfWSoXbpIJg6NkHp9R9bbUqO7b1tFE7thEtTPGRDJTeN8xKyqD8syG7f46Tth7C5SNesaWpiZY0wAbuNJcCpg8PZ0uZPadNUKZFK5zcP7vuECrPxE6Lg4ncLkko+ZJfi6jl9/KzWh3KiI6UxDfmpSxWE5Nig3fKylSbD/81Obt1zMY/QM=&lt;/diagram&gt;&lt;/mxfile&gt;">
+    <defs/>
+    <g>
+        <path d="M 55 50 L 55 73.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 55 78.88 L 51.5 71.88 L 55 73.63 L 58.5 71.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <ellipse cx="55" cy="25" rx="55" ry="25" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 25px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                read_data
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="55" y="29" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    read_data
+                </text>
+            </switch>
+        </g>
+        <path d="M 55 120 L 55 143.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 55 148.88 L 51.5 141.88 L 55 143.63 L 58.5 141.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 120 L 20 80 L 110 80 L 90 120 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 100px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                输入文件名
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="55" y="104" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    输入文件名
+                </text>
+            </switch>
+        </g>
+        <path d="M 55 190 L 55 223.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 55 228.88 L 51.5 221.88 L 55 223.63 L 58.5 221.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 0 190 L 20 150 L 110 150 L 90 190 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 170px; margin-left: 1px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                打开文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="55" y="174" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    打开文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 55 290 L 55.05 543.65" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 55.05 548.9 L 51.55 541.9 L 55.05 543.65 L 58.55 541.9 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 55 230 L 105 260 L 55 290 L 5 260 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 260px; margin-left: 6px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                fp==NULL
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="55" y="264" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    fp==NULL
+                </text>
+            </switch>
+        </g>
+        <ellipse cx="60" cy="570" rx="55" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
+        <path d="M 180 430 L 200 380 L 300 380 L 280 430 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <g transform="translate(-0.5 -0.5)">
+            <switch>
+                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
+                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 405px; margin-left: 181px;">
+                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
+                            <div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
+                                读取文件
+                            </div>
+                        </div>
+                    </div>
+                </foreignObject>
+                <text x="240" y="409" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
+                    读取文件
+                </text>
+            </switch>
+        </g>
+        <path d="M 105 260 L 230 260 Q 240 260 240 270 L 240 373.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 240 378.88 L 236.5 371.88 L 240 373.63 L 243.5 371.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 230.52 432.5 L 230.04 513.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+        <path d="M 230.01 518.88 L 226.55 511.86 L 230.04 513.63 L 233.55 511.9 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
+        <path d="M 230 520 L 60 520" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
+    </g>
+    <switch>
+        <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
+        <a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
+            <text text-anchor="middle" font-size="10px" x="50%" y="100%">
+                Text is not SVG - cannot display
+            </text>
+        </a>
+    </switch>
+</svg>