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# kunkun
# 学生成绩管理系统
2023年4月23日
王振宇 李文菲 武杭凯 李培毅
## 项目简介
本学生成绩管理系统是为教师提供管理班级成绩的工具,该系统可以实现的对学生的成绩进行增,信息导入等基本功能,以及对学生成绩排序和分段的扩展功能,有利于对学生成绩管理。
下载地址https://bdgit.educoder.net/p2i3t8vuh/text4.git
项目开发过程中采用 Kanban (看板)进行任务管理和分工协作,并使用 Git 对程序代码和文档进行版本管理。任务分工情况如下:
|任务 |设计 |开发 |测试 |文档 |
|-----|-----|-----|-----|-----|
|C1-C3 ||||王振宇|
|C4-C6||||李文菲|
|C6-c7 ||||武杭凯|
|C8-C12 ||||李培毅|
每个成员的工作量(百分比):
|王振宇|李文菲|武杭凯|李培毅|
|------|------|------|------|
| 30 | 25 | 20 | 25 |
## 关于学生成绩管理系统
设计一个学生成绩管理系统,要求采用命令行菜单界面进行交互,具备读取、查询、修改、插入、删除和排序等基本功能,能够以表格和图表形式展示数据,采用 CSV 格式保存数据。
系统的功能性需求:
数据的读取、保存、打印、查询、修改、插入、删除、排序和图表展示。
系统的非功能性需求:
菜单驱动的命令行交互界面。
## 需求分析
分析系统的功能需求和界面需求,编制用户手册如下
### C1启动程序
命令行中执行命令 ./app ,系统启动,显示提示信息,然后显示功能菜单,等待用户输入命令
~~~
库存管理系统启动
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表
请选择:
~~~
### C2: 显示命令菜单
~~~
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表
请选择:
~~~
### C3: 退出程序
选择菜单命令 0 ,退出程序
~~~
请选择0
程序退出
~~~
### C4添加学生成绩
选择菜单命令5添加学生成绩
~~~
请选择5
输入学生姓名:小明
输入学科序号4
输入成绩100
学生1成绩 已添加
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表 | 0退出
请选择: 5
输入学生姓名:小明
输入学科序号4
学生成绩已存在
~~~
### C5查询学生成绩
输入菜单功能4输入学号对学生成绩进行查询如果没有则输出学生不存在
~~~
请选择4
输入学号01
学生姓名:小明
输出成绩100
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表 | 0退出
请选择4
输入学号001
学生不存在
~~~
### C6: 打印学生成绩列表
~~~
请选择3
----------------------------------------------------------------------------
--------------------------------------------------------
| UNMBER | NAME| PANK |
----------------------------------------------------------------------------
--------------------------------------------------------
| 01 | 小明 | 100 |
----------------------------------------------------------------------------
--------------------------------------------------------
~~~
### C7删除学生成绩
选择菜单功能8删除学生成绩
~~~
请选择7
输入学号01
成绩已删除
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表
输入学号7
学生成绩不存在
~~~
### C8修改学生成绩
选择菜单功能8对学生成绩进行修改
~~~
请选择6
输入序号01
输入成绩99
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表
请输入4
请输入序号01
学生姓名:小明
成绩99
~~~
### C9: 对学生成绩排序
选择菜单功能8对成绩进行排序
~~~
请选择8
排序已完成
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表
~~~
### C10:将学生成绩保存到文件
选择功能2.输入文件名称以csv格式保存到文件中
~~~
请选择2
输入文件名b.csv
成绩已保存
~~~
### C11以图表方式显示成绩
~~~
请选择9
图表
01 :小明 |**********8
02 :小红 |**********12
03 :小蓝 |**********20
04 :小青 |**********10
| 1 读取 | 2 保存 | 0 退出 | 3 打印 | 4 查询 | 5 添加
| 6 修改 | 7 删除 | 8 排序 | 9 图表
~~~
### C12 从文件中读取成绩记录
选择菜单命令 1 ,提示输入文件名,若文件存在,则打开文件读取 CSV 格式保存的所有成绩记录;否
则,若文件不存在,则给出错误信息并结束。
假设文件 a.csv 中,以 CSV Comma-Separated Values格式保存了如下记录
~~~
01小明8
02小红12
03小蓝20
04小青10
~~~
则读取记录的过程如下:
~~~
请选择1
读取数据
请输入文件名a.csv
读取 4 记录
1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
请选择3
-------------------------------------------------------
| NUMBER | NAME | ON HAND |
-------------------------------------------------------
| 01 | 小明 | 8 |
| 02 | 小红 | 12 |
| 03 | 小蓝 | 20 |
| 04 | 小青 | 10 |
-------------------------------------------------------
1 读取 | 2 保存 | 3 打印 | 4 查询 | 5 添加
6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
请选择1
读取数据
请输入文件名a
a: No such file or directory
~~~
## 概要设计
系统主要分为用户界面和数据处理两大模块。
用户界面模块包括系统初始化init显示菜单display_menu选择菜单命令make_choice、确认confirm、退出quit等子模块。
数据处理模块包括数据输入(ReadScore),数据计算(AverSumofEveryStudent)等模块组成。
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
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
系统初始化。
#####display_menu
显示菜单命令。
####详细设计
![](text.drawio.svg)
#####add_data
Step 1: if 数据库满 then 提示数据库满并结束
Step 2: 输入零件编号
Step 3: if 学生成绩已存在 then 提示学生成绩已存在并结束
Step 4: 输入学生名和学科
Step 5: 添加新成绩到数据
Step 6: 提示添加成功
![](流程图2.png)

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确认退出
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确认退出
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<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"/>
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<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>
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<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>
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<text x="393" y="1179" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
sort_data
</text>
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<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>
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<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>
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<a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
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Width:  |  Height:  |  Size: 74 KiB

@ -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

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