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pkcs2aq9m cd9855e619 Update README.md
2 years ago
p253vfkpe 1ef931a032 Update README.md
2 years ago
yangtengze b259befa06 tubiao
2 years ago
yangtengze b6ffd098bd biaoge
2 years ago
yangtengze 03fbf0fbc9 graph ip
2 years ago
刘彩月 bb451fa947 Merge branch 'master' of https://bdgit.educoder.net/pkcs2aq9m/teamworks
2 years ago
刘彩月 069a651202 1
2 years ago
pkcs2aq9m 3a5ec6c43b Update README.md
2 years ago
李聪颖 514ca7de11 2
2 years ago
yangtengze 5039b3109a 66666
2 years ago
yangtengze 0c65d861e9 Merge branch 'master' of https://bdgit.educoder.net/pkcs2aq9m/teamworks
2 years ago
yangtengze 9e1d217393 renwu
2 years ago
刘彩月 16559c92c0 1
2 years ago
pkcs2aq9m 2f49ed3f3e Merge pull request '7-9和标题' (#15) from 杨腾泽 into master
2 years ago
yangtengze 0fbff19606 1
2 years ago
yangtengze 07eb86bb89 Merge branch 'master' into 杨腾泽
2 years ago
pkcs2aq9m b62f0d4a31 Merge pull request '2个' (#13) from 李聪颖 into master
2 years ago
李聪颖 33b05f4feb 2个
2 years ago
李聪颖 7b1cd92286 Merge remote-tracking branch 'origin/master' into 李聪颖
2 years ago
yangtengze 0a2e486c54 youhua
2 years ago
pkcs2aq9m 961ba19c2c Merge pull request '4-6 图' (#12) from 李聪颖 into master
2 years ago
李聪颖 41044cbc4d Merge remote-tracking branch 'origin/master' into 李聪颖
2 years ago
李聪颖 3aa38fc706 okk
2 years ago
pkcs2aq9m 865db737cd Merge pull request '7-9图表' (#10) from 杨腾泽 into master
2 years ago
yangtengze 352fb0971d 1
2 years ago
yangtengze 90d92ccf81 Merge branch 'master' into 杨腾泽
2 years ago
孙英皓 efc8b0e1a9 .
2 years ago
pkcs2aq9m cf74b231f8 Merge pull request '10-12优化' (#9) from 孙英皓 into master
2 years ago

@ -8,26 +8,27 @@
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://gitee.com/sjandsy/parts-management.git 下载地址https://bdgit.educoder.net/pkcs2aq9m/teamworks.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 | | | | | | C1-C3 菜单驱动的用户界面 | 孙英皓 | 杨腾泽 | 刘彩月 | 孙英皓 |
|C4 添加库存记录 | | | | | |C4 添加库存记录 | 李聪颖 | 李聪颖 | 杨腾泽 孙英皓 |李聪颖 |
|C5 查询库存记录 | | | | | |C5 查询库存记录 | 李聪颖 | 李聪颖 | 杨腾泽 孙英皓 | 李聪颖 |
|C6 打印库存列表 | | | | | |C6 打印库存列表 | 李聪颖 | 李聪颖 | 杨腾泽 孙英皓 | 李聪颖 |
|C7 修改库存记录 | | | | | |C7 修改库存记录 | 刘彩月 | 刘彩月 | 李聪颖 杨腾泽 | 刘彩月 |
|C8 删除库存记录 | | | | | |C8 删除库存记录 | 刘彩月 | 刘彩月 | 李聪颖 杨腾泽 | 刘彩月 |
|C9 库存记录排序 | | | | | |C9 库存记录排序 | 刘彩月 | 刘彩月 | 李聪颖 杨腾泽 | 刘彩月 |
|C10 读取库存文件 | | | | | |C10 读取库存文件 | 杨腾泽 | 杨腾泽 | 李聪颖 刘彩月 | 杨腾泽 |
|C11 将库存保存到文件 | | | | | |C11 将库存保存到文件 | 杨腾泽 | 杨腾泽 | 孙英皓 刘彩月 | 杨腾泽 |
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
@ -293,11 +294,114 @@ 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](images/sort.drawio.svg) ![排序模块流程图](graph/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”
@ -305,10 +409,10 @@ 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](images/delete_from_list.drawio.svg) ![删除数据流程图](graph/delete_from_list.drawio.svg)
#### Show #### Show
Step1if没有商品数据则显示“您的数据库内没有商品 Step1if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](images/Show.drawio.svg) ![图表模块流程图](graph/Show.drawio.svg)

@ -1,93 +1,93 @@
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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: 460px; margin-left: 31px;"> <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 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;">
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输入id进行比对 若有则通过链表修改信息
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输入id进行比对 若有则通过链表修改信息
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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: 590px; 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: 40px; margin-left: 91px;">
<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;">
若没有则返回信息 修改模块
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若没有则返回信息 修改模块
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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: 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 判断指针并返回信息
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<text x="200" y="594" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="150" y="214" 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 判断指针并返回信息
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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%">
Viewer does not support full SVG 1.1 Text is not SVG - cannot display
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添加模块 不存在返回error
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添加模块 不存在返回error
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判断链表是否存在 输入结束返回ok
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不存在返回error 添加模块
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不存在返回error 添加模块
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存在则头插法输入数据 判断链表是否存在
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存在则头插法输入数据 判断链表是否存在
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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: 395px; 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: 330px; margin-left: 221px;">
<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 存在则头插法输入数据
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<text x="250" y="399" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="280" y="334" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
输入结束返回ok 存在则头插法输入数据
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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"/>
</g> </g>
<switch> <switch>
<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%">
Viewer does not support full SVG 1.1 Text is not SVG - cannot display
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<g> <g>
<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 70 110 L 70 60" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<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: 108px; height: 1px; padding-top: 40px; margin-left: 31px;"> <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 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 为空返回error
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="85" y="44" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="70" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
读取文件 为空返回error
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</switch> </switch>
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<path d="M 80 150 L 85 80" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <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"/>
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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: 180px; margin-left: 21px;"> <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 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 不为空文件指针指向文件 并打开
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="80" y="184" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="260" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
判断头指针 不为空文件指针指向文件 并打开
</text> </text>
</switch> </switch>
</g> </g>
<path d="M 60 270 L 80 210" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <path d="M 260 405 L 260 320" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<rect x="0" y="270" width="120" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/> <rect x="200" y="405" 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: 300px; 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: 435px; 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;">
为空返回error 若文件内没有数据返回无信息
</div> </div>
</div> </div>
</div> </div>
</foreignObject> </foreignObject>
<text x="60" y="304" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="260" y="439" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
为空返回error 若文件内没有数据返回无信息
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</switch> </switch>
</g> </g>
<path d="M 140 180 L 200 260" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <ellipse cx="70" cy="30" rx="60" ry="30" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<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: 290px; margin-left: 161px;"> <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 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 读取文件
</div> </div>
</div> </div>
</div> </div>
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<text x="220" y="294" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="70" y="34" 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 读取文件
</text> </text>
</switch> </switch>
</g> </g>
<path d="M 190 370 L 220 320" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/> <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"/>
<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: 118px; height: 1px; padding-top: 400px; margin-left: 141px;"> <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 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 判断头指针
</div> </div>
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</foreignObject> </foreignObject>
<text x="200" y="404" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle"> <text x="70" y="144" 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 判断头指针
</text> </text>
</switch> </switch>
</g> </g>
@ -95,7 +95,7 @@
<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%">
Viewer does not support full SVG 1.1 Text is not SVG - cannot display
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save_data save_data
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save_data save_data
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输入文件名 输入文件名
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输入文件名 输入文件名
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打开文件 打开文件
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打开文件 打开文件
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打开文件成功? 打开文件成功?
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打开文件成功? 打开文件成功?
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把所有库存记录 关闭文件
<br/>
写入文件
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把所有库存记录 关闭文件
写入文件
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关闭文件 提示打开文件失败
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提示打开文件失败 把所有库存记录写进文件夹
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打印模块
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打印模块
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