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README.md
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本系统是程序设计与问题求解课程设计项目，实现了库存零件 CSV 格式数据文件的读取和保存，以及数据的增删改查（CRUD）、排序和图表显示等功能。项目采用 C 语言编程实现，在 VS Code 集成开发环境（IDE）中用 GCC 进行编译。系统采用模块化设计，程序结构清晰，采用菜单驱动的命令行界面，操作便捷，能够用 CSV 格式读取和保存数据，通用性强，能够用图表展示数据，直观清楚。 本系统是程序设计与问题求解课程设计项目，实现了库存零件 CSV 格式数据文件的读取和保存，以及数据的增删改查（CRUD）、排序和图表显示等功能。项目采用 C 语言编程实现，在 VS Code 集成开发环境（IDE）中用 GCC 进行编译。系统采用模块化设计，程序结构清晰，采用菜单驱动的命令行界面，操作便捷，能够用 CSV 格式读取和保存数据，通用性强，能够用图表展示数据，直观清楚。
下载地址：https://bdgit.educoder.net/pkcs2aq9m/teamworks.git 下载地址：https://gitee.com/sjandsy/parts-management.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： 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 | | 任务 | 设计 | 开发 | 测试 | 文档 |
| ---- | ---- | ---- | ---- | ---- | | ---- | ---- | ---- | ---- | ---- |
| C1-C3 菜单驱动的用户界面 | 孙英皓 | 杨腾泽 | 刘彩月 | 孙英皓 | | C1-C3 菜单驱动的用户界面 | | | | |
|C4 添加库存记录 | 李聪颖 | 李聪颖 | 杨腾泽 孙英皓 |李聪颖 | |C4 添加库存记录 | | | | |
|C5 查询库存记录 | 李聪颖 | 李聪颖 | 杨腾泽 孙英皓 | 李聪颖 | |C5 查询库存记录 | | | | |
|C6 打印库存列表 | 李聪颖 | 李聪颖 | 杨腾泽 孙英皓 | 李聪颖 | |C6 打印库存列表 | | | | |
|C7 修改库存记录 | 刘彩月 | 刘彩月 | 李聪颖 杨腾泽 | 刘彩月 | |C7 修改库存记录 | | | | |
|C8 删除库存记录 | 刘彩月 | 刘彩月 | 李聪颖 杨腾泽 | 刘彩月 | |C8 删除库存记录 | | | | |
|C9 库存记录排序 | 刘彩月 | 刘彩月 | 李聪颖 杨腾泽 | 刘彩月 | |C9 库存记录排序 | | | | |
|C10 读取库存文件 | 杨腾泽 | 杨腾泽 | 李聪颖 刘彩月 | 杨腾泽 | |C10 读取库存文件 | | | | |
|C11 将库存保存到文件 | 杨腾泽 | 杨腾泽 | 孙英皓 刘彩月 | 杨腾泽 | |C11 将库存保存到文件 | | | | |
每个成员的工作量（百分比）： 每个成员的工作量（百分比）：
| | | | |
| 杨腾泽 | 孙英皓 | 刘彩月 | 李聪颖 |
|--------|-------|---------|-------| |--------|-------|---------|-------|
| 25 | 25 | 25 | 25 | | | | | |
## 关于零件库存管理系统 ## 关于零件库存管理系统
@ -294,114 +293,11 @@ ID | NAME Amount
``` ```
## 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（menu），选择菜单命令（menu1）、确认（confirm）、退出（exit）等子模块。
数据处理模块包括读取数据（read_data）、保存数据（saveData）、打印数据（show_goods）、查询数据（find_goods）、添加数据（insert）、更新数据（increase_count）、删除数据（delete_from_list）、数据排序（sort）和图表（Show）等子模块。其中查询、添加、更新和删除数据还会用到根据编号查询数据的方法（find）。
上述各模块通过主程序（main）进行调用，系统模块图如下。
![系统模块图](images/main.drawio.svg)
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
针对概要设计
#### 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:
![主程序流程图](graph/main.drawio.svg)
#### savedata
Step 1: 输入文件名
Step 2: 打开文件
Step 3: if 打开文件失败 then 提示打开文件失败并结束
Step 4: 将所有库存记录写入文件
Step 5: 关闭文件
![保存数据流程图](graph/saveData.drawio.svg)
#### insert
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 零件已存在 then 提示零件已存在并结束
Step 4: 输入零件名和库存数量
Step 5: 添加新零件到数据
Step 6: 提示添加成功
![添加库存记录流程图](graph/insert.drawio.svg)
#### show_goods
Step 1: 创建表格边框
Step 2: 如果没有商品
Step 3: 提示“数据库内没有商品”
Step 4: 输入编号
Step 5: 打印商品
![打印数据流程图](graph/show_goods.drawio.svg)
#### readData
Step 1: if数据库空则返回“读取数据失败”
Step 2: if没有商品则返回“注意：您的数据库内没有商品信息”
Step 3: 输入文件名称
Step 4: 输出数据库里的商品信息
![读取数据流程图](graph/readData.drawio.svg)
#### find_goods
Step1: if数据库为空则返回“数据库数据为空，请先添加商品信息”
Step2: 输入需要查找的商品ID
Step3: 输出商品信息
Step4: if输入的商品信息不存在则返回 "输入的商品信息无效！！！”
![查询数据流程图](graph/find_goods.drawio.svg)
#### increase_count
Step1: if数据库为空则返回“数据库数据为空，请先添加商品信息”
Step2: 输入需要修改的商品ID
Step3: 修改信息并显示修改成功
Step4: if没有需要修改的商品则返回
![修改模块流程图](graph/increase_count.drawio.svg)
#### sort #### sort
Step1 : 输入需要排序的商品编号 Step1 : 输入需要排序的商品编号
Step2 : 进行排序 Step2 : 进行排序
Step3 : 排序完成 Step3 : 排序完成
![排序模块流程图](graph/sort.drawio.svg) ![排序模块流程图](images/sort.drawio.svg)
#### delete_from_list #### delete_from_list
Step1: if数据库为空则返回“数据库数据为空，请先添加商品信息” Step1: if数据库为空则返回“数据库数据为空，请先添加商品信息”
@ -409,10 +305,10 @@ Step2: 输入需要删除的商品id
Step3: 删除商品并显示删除成功 Step3: 删除商品并显示删除成功
Step4: if输入的商品id不存在则返回“您输入的商品名称没有找到！！” Step4: if输入的商品id不存在则返回“您输入的商品名称没有找到！！”
![删除数据流程图](graph/delete_from_list.drawio.svg) ![删除数据流程图](images/delete_from_list.drawio.svg)
#### Show #### Show
Step1：if没有商品数据则显示“您的数据库内没有商品！” Step1：if没有商品数据则显示“您的数据库内没有商品！”
step2: 输入商品编号打印表格 step2: 输入商品编号打印表格
![图表模块流程图](graph/Show.drawio.svg) ![图表模块流程图](images/Show.drawio.svg)

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创建数组进行id比对 查找模块
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判断链表是否存在并返回信息 存在则链表返回物品信息
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判断链表是否存在并返回信息 存在则链表返回物品信息
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<rect x="30" y="430" 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)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 620px; margin-left: 191px;"> <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: 460px; margin-left: 31px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
若有则通过链表修改信息 输入id进行比对
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="250" y="624" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="90" y="464" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
若有则通过链表修改信息 输入id进行比对
</text> </text>
</switch> </switch>
</g> </g>
<ellipse cx="150" cy="40" rx="60" ry="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/> <path d="M 20 560 L 69 490" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<path d="M 150 560 L 108 490" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<rect x="0" y="560" 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)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 40px; margin-left: 91px;"> <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 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;"> <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;">
修改模块 若没有则返回信息
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="150" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="60" y="594" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
修改模块 若没有则返回信息
</text> </text>
</switch> </switch>
</g> </g>
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<path d="M 150 170 L 235 210 L 150 250 L 65 210 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 168px; height: 1px; padding-top: 210px; margin-left: 66px;"> <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: 141px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
判断指针并返回信息 若有则通过链表修改信息
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="150" y="214" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="200" y="594" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
判断指针并返回信息 若有则通过链表修改信息
</text> </text>
</switch> </switch>
</g> </g>
@ -113,7 +113,7 @@
<g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/> <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"> <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 text-anchor="middle" font-size="10px" x="50%" y="100%">
Text is not SVG - cannot display Viewer does not support full SVG 1.1
</text> </text>
</a> </a>
</switch> </switch>

Side by Side Swipe Overlay

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After

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graph/insert.drawio.svg
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<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 325px; margin-left: 1px;"> <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 168px; 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 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;"> <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;">
不存在返回error 添加模块
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="60" y="329" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="85" y="39" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
不存在返回error 添加模块
</text> </text>
</switch> </switch>
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<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 221px;"> <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: 195px; margin-left: 26px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
输入结束返回ok 判断链表是否存在
</div> </div>
</div> </div>
</div> </div>
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<text x="280" y="454" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="85" y="199" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
输入结束返回ok 判断链表是否存在
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<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 40px; margin-left: 111px;"> <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: 11px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
添加模块 不存在返回error
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</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="170" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="70" y="324" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
添加模块 不存在返回error
</text> </text>
</switch> </switch>
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<rect x="200" y="250" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 138px; height: 1px; padding-top: 180px; margin-left: 101px;"> <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: 201px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
判断链表是否存在 存在则头插法输入数据
</div> </div>
</div> </div>
</div> </div>
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<text x="170" y="184" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="260" y="284" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
判断链表是否存在 存在则头插法输入数据
</text> </text>
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<path d="M 60 295 L 170 220" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <path d="M 250 360 L 300 310" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<rect x="220" y="300" width="120" height="60" rx="9" ry="9" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/> <rect x="190" y="365" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <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: 118px; height: 1px; padding-top: 330px; margin-left: 221px;"> <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: 395px; margin-left: 191px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
存在则头插法输入数据 输入结束返回ok
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<text x="280" y="334" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="250" y="399" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
存在则头插法输入数据 输入结束返回ok
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<path d="M 272.8 301.2 L 170 220" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
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<switch> <switch>
<g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/> <g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
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<text text-anchor="middle" font-size="10px" x="50%" y="100%"> <text text-anchor="middle" font-size="10px" x="50%" y="100%">
Text is not SVG - cannot display Viewer does not support full SVG 1.1
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<g> <g>
<path d="M 70 110 L 70 60" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <path d="M 85 0 L 140 40 L 85 80 L 30 40 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<path d="M 70 260 L 70 170" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<rect x="10" y="260" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 290px; margin-left: 11px;"> <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: 40px; margin-left: 31px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
为空返回error 读取文件
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="70" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="85" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
为空返回error 读取文件
</text> </text>
</switch> </switch>
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<path d="M 140 140 L 250 140 Q 260 140 260 150 L 260 260" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <path d="M 80 150 L 85 80" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
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<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 290px; margin-left: 201px;"> <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: 180px; margin-left: 21px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
不为空文件指针指向文件 并打开 判断头指针
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="260" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="80" y="184" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
不为空文件指针指向文件 并打开 判断头指针
</text> </text>
</switch> </switch>
</g> </g>
<path d="M 260 405 L 260 320" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <path d="M 60 270 L 80 210" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<rect x="200" y="405" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/> <rect x="0" y="270" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 435px; margin-left: 201px;"> <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: 300px; margin-left: 1px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
若文件内没有数据返回无信息 为空返回error
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</div> </div>
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<text x="260" y="439" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="60" y="304" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
若文件内没有数据返回无信息 为空返回error
</text> </text>
</switch> </switch>
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<ellipse cx="70" cy="30" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/> <path d="M 140 180 L 200 260" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<rect x="160" y="260" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 11px;"> <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: 290px; margin-left: 161px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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 不为空文件指针指向文件 并打开
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="70" y="34" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="220" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
读取文件 不为空文件指针指向文件 并打开
</text> </text>
</switch> </switch>
</g> </g>
<path d="M 70 110 L 140 140 L 70 170 L 0 140 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/> <path d="M 190 370 L 220 320" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<rect x="140" y="370" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
<switch> <switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"> <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: 138px; height: 1px; padding-top: 140px; margin-left: 1px;"> <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: 400px; margin-left: 141px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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;"> <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;">
判断头指针 若文件内没有数据返回无信息
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="70" y="144" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="200" y="404" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
判断头指针 若文件内没有数据返回无信息
</text> </text>
</switch> </switch>
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<a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"> <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 text-anchor="middle" font-size="10px" x="50%" y="100%">
Text is not SVG - cannot display Viewer does not support full SVG 1.1
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</a> </a>
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Unescape View File

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<switch> <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: 118px; height: 1px; padding-top: 20px; margin-left: 1px;"> <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: 20px; margin-left: 21px;">
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<div style="display: inline-block; font-size: 12px; font-family: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"> <div style="display: inline-block; font-size: 12px; font-family: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
save_data save_data
@ -15,18 +15,18 @@
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<text x="60" y="24" fill="rgb(0, 0, 0)" font-family="Times New Roman" font-size="12px" text-anchor="middle"> <text x="80" y="24" fill="rgb(0, 0, 0)" font-family="Times New Roman" font-size="12px" text-anchor="middle">
save_data save_data
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<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: 80px; margin-left: 1px;"> <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: 80px; margin-left: 21px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"> <div style="display: inline-block; font-size: 12px; font-family: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
输入文件名 输入文件名
@ -34,18 +34,18 @@
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输入文件名 输入文件名
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<g transform="translate(-0.5 -0.5)"> <g transform="translate(-0.5 -0.5)">
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<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: 140px; margin-left: 1px;"> <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: 140px; margin-left: 21px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"> <div style="display: inline-block; font-size: 12px; font-family: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
打开文件 打开文件
@ -53,20 +53,20 @@
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打开文件 打开文件
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<switch> <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: 118px; height: 1px; padding-top: 210px; margin-left: 1px;"> <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: 210px; margin-left: 21px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"> <div style="display: inline-block; font-size: 12px; font-family: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
打开文件成功？ 打开文件成功？
@ -74,75 +74,78 @@
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打开文件成功？ 打开文件成功？
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<switch> <switch>
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<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"> <div style="display: inline-block; font-size: 12px; font-family: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
关闭文件 把所有库存记录
<br/>
写入文件
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<text x="60" y="364" fill="rgb(0, 0, 0)" font-family="Times New Roman" font-size="12px" text-anchor="middle"> <text x="80" y="294" fill="rgb(0, 0, 0)" font-family="Times New Roman" font-size="12px" text-anchor="middle">
关闭文件 把所有库存记录
写入文件
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<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"> <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: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"> <div style="display: inline-block; font-size: 12px; font-family: &quot;Times New Roman&quot;; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
提示打开文件失败 关闭文件
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把所有库存记录写进文件夹 提示打开文件失败
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打印模块
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打印模块
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