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{
"recommendations": [
"mhutchie.git-graph"
]
}

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------------------------------------------------------- -------------------------------------------------------
| NUMBER | NAME | ON HAND | | NUMBER | NAME | ON HAND |
------------------------------------------------------- -------------------------------------------------------
| 101 | 小 | 80 | | 101 | 小 | 80 |
------------------------------------------------------- -------------------------------------------------------
``` ```
@ -291,161 +291,3 @@ a: No such file or directory
6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出 6 修改 | 7 删除 | 8 排序 | 9 图表 | 0 退出
``` ```
## 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。
数据处理模块包括读取数据read_data、保存数据save_data、打印数据print_data、查询数据query_data、添加数据add_data、更新数据update_data、删除数据delete_data、数据排序sort_data和生成图表make_chart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。
![](pictures/xitongmoban.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: if c == CMD_QUERY then 查询数据
Step 2.7: if c == CMD_ADD then 添加数据
Step 2.8: if c == CMD_UPDATE then 修改数据
Step 2.9: if c == CMD_DELETE then 删除数据
Step 2.10: if c == CMD_SORT then 排序数据
Step 2.11: if c == CMD_MAKE then 显示图表
Step 2.12: if c == CMD_QUIT then 退出
![](pictures/main_chart.drawio.svg)
#### read_data
Step 1: 输入文件名
Step 2: 打开文件
Step 3: if 文件为空 then 结束
Step 4: else 读取文件
Step 5: 提示读取并记录
![](pictures/read.drawio.svg)
#### save_data
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
![](pictures/save_data.drawio.svg)
#### print_data
Step 1: 输出学号、姓名、成绩
![](pictures/print.drawio.svg)
#### query_data
Step 1: 输入学生学号
Step 2: if学号不存在 then 提示学生不存在并结束
Step 3: else 学号存在 then 输出学号、姓名、成绩
![](pictures/query_data.drawio.svg)
#### add_data
Step 1: if 数据库满 then 提示数据库满并结束
Step 2: 输入学号
Step 3: if 学生已存在 then 提示学生已存在并结束
Step 4: 输入学生名字和成绩
Step 5: 添加学生到数据
Step 6: 提示添加成功
![](pictures/add_data.drawio.svg)
#### update_data
Step 1: 输入学号
Step 2: if 不存在 then 提示学生不存在并结束
Step 3: else 输入学号、姓名、成绩
Step 4: 已更新
![](pictures/updata_data.drawio.svg)
#### delete_data
Step 1: 输入学号
Step 2: if 不存在 then 提示学生不存在并结束
Step 3: else 删除学生信息
Step 4: 提示删除成功
![](pictures/delete.drawio.svg)
#### sort_data
Step 1: 读取文件
Step 2: 进行排序
Step 3: 提示排序已完成
![](pictures/sort.drawio.svg)
#### make_chart
Step 1: 读取文件
Step 2: 显示图表
![](pictures/make_chart.drawio.svg)
#### confirm
Step 1: 输出 确定要退出吗
Step 2: if 确认 then 退出
![](pictures/confirm.drawio.svg)
## 总结反思
#####董函铄
在这个项目中我们的团队旨在建立一个学生成绩管理系统为了更好的完成这个项目我们团队进行了分工协作将这个项目划分成几个小部分每个人完成自己的工作部分最后再有组长检查整合。在这次团队项目中我们运用VS-code头歌进行工作在工作中我们也会遇到一些问题例如合并请求冲突流程图上传失败等但是在团队和老师的帮助下都一一解决了。在这次项目中我学会了用vs-code画流程图学会了如何建立分支、合并分支也知道了团队协作的重要性团队协作可以高效地完成工作当然团队协作也会出现一些矛盾每个人对待问题的解决方法不同这些都是我们需要讨论协调的。
总之通过这次小组项目我对vscode的功能有了更新的认识了解了更多的功能也明白了小组协作的重要性在小组协作中我们要学会理解信任进行合理有效的沟通。
#####胡煜男
在团队合作中,我学到了以下几点:
1. 理解与包容每个人的思维和行为方式都不同但这并不代表每个人都是错误的。在团队协作中要学会理解和包容其他人的想法不要因为意见不同而产生摩擦和矛盾。2. 合理分工:团队协作需要进行合理分工,每个人应该清楚自己的职责和任务,同时也要关注整个团队的进展和目标。
3. 及时沟通:团队协作需要及时沟通,共享信息和意见。这样可以有效避免误解和错误,并且可以让整个团队更加紧密地协作起来。
总之,小组合作对于实现共同目标和达成工作任务至关重要。在一个整体中,每个人都应该学会互相信任、理解与包容、合理分工以及及时沟通,这样才能够更加高效地完成工作任务。
#####于博
在这次团队合作项目中我学会了很多东西,比如:如何更好的去发挥自己和团队的优势;如何处理好人际关系;如何面对困难与挫折;如何面对压力和挑战;如何调整自己的心态、提升自己的自信……在这次活动中让我感觉到了团队精神的重要性。
我们在训练中每个人都有自己的优势和不足,在合作中要发挥自己的优势,弥补自己的不足,这需要我们在平时的工作中学会沟通与交流,互相学习与信任。当我们站在高坡上向下眺望,心中不免会有些恐惧,但是当我们迈出第一步时,就会发现其实并没有想象中的那么可怕,在经过一段时间后就会发现自己已经完全克服了内心的恐惧,当我们从高处往下看时就像站在云上一样,非常的自在与舒适。在这次训练中我明白了团队合作的重要性,团结力量大。这次训练给我最大的感触就是每个人都离不开团队,在一个团队中每个人都应该发挥自己的长处去服务于这个团队。
#####袁楷昊
通过这次的小组项目合作,我感受到了小组内部明确的分工合作,让我看到了一位认真务实、严谨负责、富有领导力的组长,在她的领导下我们才能快速高效的完成此次的小组项目,让我对小组项目的具体流程,分工合作的方式方法有了一定的认识,学会了如何进行分工协作,提高了小组合作的能力,让我看到了这个专业的一种作用。同时,也让同学之间有了更深的认识,非常感谢老师能够给予的这次小组合作的机会,以及组员之间的默契合作。

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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 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;">
显示:学号已存在
</div>
</div>
</div>
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<text x="390" y="419" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
显示:学号已存在
</text>
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<rect x="355" y="345" 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: 360px; margin-left: 370px;">
<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>
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<text x="370" y="364" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
Y
</text>
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<path d="M 710 420 L 710 453.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<path d="M 710 458.88 L 706.5 451.88 L 710 453.63 L 713.5 451.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<path d="M 650 420 L 670 380 L 770 380 L 750 420 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)">
<switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
<div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 400px; margin-left: 651px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
<div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
输入姓名
</div>
</div>
</div>
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<text x="710" y="404" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
输入姓名
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<path d="M 650 500 L 670 460 L 770 460 L 750 500 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)">
<switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
<div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 480px; margin-left: 651px;">
<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
<div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
输入成绩
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</div>
</div>
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<text x="710" y="484" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
输入成绩
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<path d="M 710 580 L 710 603.63" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<path d="M 710 608.88 L 706.5 601.88 L 710 603.63 L 713.5 601.88 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<rect x="650" y="540" width="120" height="40" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)">
<switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
<div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 560px; margin-left: 651px;">
<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;">
添加到学生数据科
</div>
</div>
</div>
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<text x="710" y="564" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
添加到学生数据科
</text>
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<path d="M 710 650 L 710 690 Q 710 700 700 700 L 96.37 700" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
<path d="M 91.12 700 L 98.12 696.5 L 96.37 700 L 98.12 703.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<path d="M 650 650 L 670 610 L 770 610 L 750 650 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
<g transform="translate(-0.5 -0.5)">
<switch>
<foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
<div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 630px; margin-left: 651px;">
<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;">
显示:零件已添加
</div>
</div>
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<text x="710" y="634" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
显示:零件已添加
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<ellipse cx="90" cy="795" rx="60" ry="25" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/>
</g>
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<g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/>
<a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank">
<text text-anchor="middle" font-size="10px" x="50%" y="100%">
Text is not SVG - cannot display
</text>
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<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: 40px; margin-left: 11px;">
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<div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
confirm
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confirm
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<div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 190px; margin-left: 1px;">
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提示确定要退出吗
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提示确定要退出吗
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退出?
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<text x="80" y="344" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
退出?
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<switch>
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确认
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</div>
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确认
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Text is not SVG - cannot display
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delete_data
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delete_data
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<div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
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输入学号
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输入学号
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已更新
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init
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c==make_chioice
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read_data
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read_data
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c==CMD_READ
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c==CMD_QUERY
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c==CMD_QUERY
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c==CMD_INSERT
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c==CMD_UPDATE
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c==CMD_UPDATE
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c==CMD_DELETE
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c==CMD_DELETE
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c==CMD_SORT
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c==CMD_SORT
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c==CMD_CHART
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c==CMD_CHART
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c==CMD_QUIT
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c==CMD_QUIT
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确定退出
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确定退出
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quit
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quit
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save_data
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save_data
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peint_data
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peint_data
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query_data
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query_data
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add_data
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add_data
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update_data
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update_data
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delete_data
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delete_data
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sort_data
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quit
</div>
</div>
</div>
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quit
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<div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
main
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main
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read_data
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read_data
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<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>
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save_data
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<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>
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print_data
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query_data
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query_data
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add_data
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add_data
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<switch>
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<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>
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<text x="600" y="424" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
update_data
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<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="600" y="504" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">
delete_data
</text>
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<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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sort_data
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<div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
make_data
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</div>
</div>
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make_data
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find
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find
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@ -1,6 +0,0 @@
app: app.o data.o
gcc -o app app.o data.o
app.o: app.c data.h
gcc -c app.c
data.o: data.c data.h
gcc -c data.c

@ -1,3 +0,0 @@
101 小米 80
104 小刘 96
100 小明 70
1 101 小米 80
2 104 小刘 96
3 100 小明 70

@ -1,357 +0,0 @@
#define NAME_LEN 31
#define MAX_PARTS 100
//保存学生成绩信息的结构
struct students
{
int number;
char name[NAME_LEN + 1];
int score;
};
static struct students stu[MAX_PARTS];
static int num_parts = 0;
#include <stdio.h>
#include <stdlib.h>
//定义常量
#define CMD_QUIT 0
#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
// 函数声明
void init(void);
void quit(void);
void display_menu(void);
int make_choice(void);
void read_data(void); // 读取
void save_data(void); // 保存
void print_data(void); // 打印
void query_data(void); // 查询
void add_data(void); // 添加
void update_data(void); // 修改
void delete_data(void); // 删除
void sort_data(void); // 排序
void make_chart(void); // 图表
int confirm(const char *msg);
// 主程序
int main(void)
{
init(); // 程序启动
while (1)
{
display_menu();
int c = make_choice();
switch (c)
{
case CMD_QUERY:
query_data();
break;
case CMD_INSERT:
add_data();
break;
case CMD_UPDATE:
update_data();
break;
case CMD_DELETE:
delete_data();
break;
case CMD_READ:
read_data();
break;
case CMD_SAVE:
save_data();
break;
case CMD_PRINT:
print_data();
break;
case CMD_SORT:
sort_data();
break;
case CMD_CHART:
make_chart();
break;
default:
puts("命令错误,请重新选择");
break;
case CMD_QUIT:
if (confirm("确定要退出吗?"))
quit(); // 仅在确认后退出
break;
}
}
return 0;
}
// 函数定义
void init(void)
{
puts("程序启动");
}
void quit(void)
{
puts("程序退出");
exit(EXIT_SUCCESS);
}
void display_menu(void)
{
printf("\n%d 读取 | %d 保存 | %d 打印 | %d 查询 | %d 添加\n%d 修改 | %d 删除 | %d 排序 | %d 图表 | %d 退出\n\n", CMD_READ, CMD_SAVE, CMD_PRINT, CMD_QUERY, CMD_INSERT, CMD_UPDATE, CMD_DELETE, CMD_SORT, CMD_CHART, CMD_QUIT);
}
int make_choice(void)
{
int c; // 用户输入
int n = 0; // 正确读入的数据项个数
while (n == 0)
{
printf("请选择:");
n = scanf("%d", &c); // 尝试读入整数 c
scanf("%*[^\n]"); // 跳过一行中剩余的字符
}
return c;
}
//查询
void query_data(void)
{
int num;
printf("输入学生学号: ");
scanf("%d", &num);
int f = -1;
for (int i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = i;
break;
}
}
if (f == -1)
{
printf("学生不存在");
}
else
{
printf("学生学号:%d\n", stu[f].number);
printf("学生姓名:%s\n", stu[f].name);
printf("学生成绩:%d\n", stu[f].score);
}
}
//打印
void print_data(void)
{
printf("NUMBER | NAME score\n");
for (int i = 0; i < num_parts; i++)
{
printf("%d | %s %d\n", stu[i].number, stu[i].name, stu[i].score);
}
}
//添加
void add_data(void)
{
int num;
printf("输入学生学号:");
scanf("%d", &num);
int f = 0;
for (int i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = 1;
break;
}
}
if (f == 0)
{
stu[num_parts].number = num;
printf("输入学生姓名:");
scanf("%s", &stu[num_parts].name);
printf("输入学生成绩:");
scanf("%d", &stu[num_parts].score);
num_parts++;
printf("学生 %d 添加成功\n", num);
}
else
{
printf("学生已存在");
}
}
//修改
void update_data(void)
{
int num;
printf("输入学生学号:");
scanf("%d", &num);
int f = 0;
for (int i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = 1;
break;
}
}
if (f == 0)
{
printf("学生不存在");
}
else
{
printf("输入学生学号:");
scanf("%d", &stu[num].number);
printf("输入学生姓名:");
scanf("%s", stu[num].name);
printf("输入学生成绩:");
scanf("%d", &stu[num].score);
printf("学生 %d 已更新", num);
}
}
//删除
void delete_data(void)
{
int num;
printf("输入学生学号:");
scanf("%d", &num);
int f = 0, i, j;
for (i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = 1;
break;
}
}
if (f == 0)
{
printf("学生不存在");
}
else
{
for (j = i; j < num_parts - 1; j++)
{
stu[j] = stu[j + 1];
}
num_parts--;
printf("删除成功");
}
}
//读取
void read_data(void)
{
puts("读取数据");
printf("请输入文件名");
char filename[256];
scanf("%s", filename);
FILE *fp = fopen(filename, "r");
if (fp == NULL)
{
perror(filename);
return;
}
int i = 0;
while (fscanf(fp, "%d,%[^,],%d", &stu[i].number, stu[i].name, &stu[i].score) == 3)
{
i++;
}
fclose(fp);
num_parts = i;
printf("读取 %d 记录\n", num_parts);
}
//保存
void save_data(void)
{
puts("保存数据");
printf(" 请输入文件名");
char filename[256];
scanf("%s", filename);
FILE *fp = fopen(filename, "r");
if (fp == NULL)
{
perror(filename);
return;
}
for (int i = 0; i < num_parts; i++)
{
fprintf(fp, "%d,%s,%d\n", stu[i].number, stu[i].name, stu[i].score);
}
fclose(fp);
printf("保存%d 成功", num_parts);
}
//排序
void sort_data(void)
{
printf("排序\n");
for (int i = 0; i < num_parts; i++)
{
int change = 0;
static struct students t;
for (int j = 0; j < num_parts - i - 1; j++)
{
if (stu[j].number > stu[j + 1].number)
{
t = stu[j + 1];
stu[j + 1] = stu[j];
stu[j] = t;
change = 1;
}
}
if (!change)
break;
}
for (int i = 0; i < num_parts; i++)
{
int change = 0;
static struct students t;
for (int j = 0; j < num_parts - i - 1; j++)
{
if (stu[j].score > stu[j + 1].score)
{
t = stu[j + 1];
stu[j + 1] = stu[j];
stu[j] = t;
change = 1;
}
}
if (!change)
break;
}
printf("排序已完成");
}
//图表
void make_chart(void)
{
printf("NUMBER | NAME score\n");
for (int i = 0; i < num_parts; i++)
{
printf("%d | %s ", stu[i].number, stu[i].name);
for (int j = 0; j < stu[i].score; j++)
{
printf("*");
}
printf("\n");
}
printf("图表\n");
}
int confirm(const char *msg)
{
char c = 'n'; // 默认选择是 no
printf("%s(Y/N): ", msg); // 提示输入 yes/no 进行确认
scanf(" %c%*[^\n]", &c); // 读取第一个字符,忽略剩余字符
return c == 'y' || c == 'Y'; // 返回确认结果
}

@ -1,291 +0,0 @@
#define NAME_LEN 31
#define MAX_PARTS 100
struct students
{
int number;
char name[NAME_LEN + 1];
int score;
};
static struct students stu[MAX_PARTS];
static int num_parts = 0;
#include <stdio.h>
#include <stdlib.h>
//定义常量
#define CMD_QUIT 0
#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
// 函数定义
void init(void)
{
puts("程序启动");
}
void quit(void)
{
puts("程序退出");
exit(EXIT_SUCCESS);
}
void display_menu(void)
{
printf("\n%d 读取 | %d 保存 | %d 打印 | %d 查询 | %d 添加\n%d 修改 | %d 删除 | %d 排序 | %d 图表 | %d 退出\n\n", CMD_READ, CMD_SAVE, CMD_PRINT, CMD_QUERY, CMD_INSERT, CMD_UPDATE, CMD_DELETE, CMD_SORT, CMD_CHART, CMD_QUIT);
}
int make_choice(void)
{
int c; // 用户输入
int n = 0; // 正确读入的数据项个数
while (n == 0)
{
printf("请选择:");
n = scanf("%d", &c); // 尝试读入整数 c
scanf("%*[^\n]"); // 跳过一行中剩余的字符
}
return c;
}
//查询
void query_data(void)
{
int num;
printf("输入学生学号: ");
scanf("%d", &num);
int f = -1;
for (int i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = i;
break;
}
}
if (f == -1)
{
printf("学生不存在");
}
else
{
printf("学生学号:%d\n", stu[f].number);
printf("学生姓名:%s\n", stu[f].name);
printf("学生成绩:%d\n", stu[f].score);
}
}
//打印
void print_data(void)
{
printf("NUMBER | NAME score\n");
for (int i = 0; i < num_parts; i++)
{
printf("%d | %s %d\n", stu[i].number, stu[i].name, stu[i].score);
}
}
//添加
void add_data(void)
{
int num;
printf("输入学生学号:");
scanf("%d", &num);
int f = 0;
for (int i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = 1;
break;
}
}
if (f == 0)
{
stu[num_parts].number = num;
printf("输入学生姓名:");
scanf("%s", &stu[num_parts].name);
printf("输入学生成绩:");
scanf("%d", &stu[num_parts].score);
num_parts++;
printf("学生 %d 添加成功\n", num);
}
else
{
printf("学生已存在");
}
}
//修改
void update_data(void)
{
int num;
printf("输入学生学号:");
scanf("%d", &num);
int f = 0;
for (int i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = 1;
break;
}
}
if (f == 0)
{
printf("学生不存在");
}
else
{
printf("输入学生学号:");
scanf("%d", &stu[num].number);
printf("输入学生姓名:");
scanf("%s", stu[num].name);
printf("输入学生成绩:");
scanf("%d", &stu[num].score);
printf("学生 %d 已更新", num);
}
}
//删除
void delete_data(void)
{
int num;
printf("输入学生学号:");
scanf("%d", &num);
int f = 0, i, j;
for (i = 0; i < num_parts; i++)
{
if (num == stu[i].number)
{
f = 1;
break;
}
}
if (f == 0)
{
printf("学生不存在");
}
else
{
for (j = i; j < num_parts - 1; j++)
{
stu[j] = stu[j + 1];
}
num_parts--;
printf("删除成功");
}
}
//读取
void read_data(void)
{
puts("读取数据");
printf("请输入文件名");
char filename[256];
scanf("%s", filename);
FILE *fp = fopen(filename, "r");
if (fp == NULL)
{
perror(filename);
return;
}
int i = 0;
while (fscanf(fp, "%d,%[^,],%d", &stu[i].number, stu[i].name, &stu[i].score) == 3)
{
i++;
}
fclose(fp);
num_parts = i;
printf("读取 %d 记录\n", num_parts);
}
//保存
void save_data(void)
{
puts("保存数据");
printf(" 请输入文件名");
char filename[256];
scanf("%s", filename);
FILE *fp = fopen(filename, "r");
if (fp == NULL)
{
perror(filename);
return;
}
for (int i = 0; i < num_parts; i++)
{
fprintf(fp, "%d,%s,%d\n", stu[i].number, stu[i].name, stu[i].score);
}
fclose(fp);
printf("保存%d 成功", num_parts);
}
//排序
void sort_data(void)
{
printf("排序\n");
for (int i = 0; i < num_parts; i++)
{
int change = 0;
static struct students t;
for (int j = 0; j < num_parts - i - 1; j++)
{
if (stu[j].number > stu[j + 1].number)
{
t = stu[j + 1];
stu[j + 1] = stu[j];
stu[j] = t;
change = 1;
}
}
if (!change)
break;
}
for (int i = 0; i < num_parts; i++)
{
int change = 0;
static struct students t;
for (int j = 0; j < num_parts - i - 1; j++)
{
if (stu[j].score > stu[j + 1].score)
{
t = stu[j + 1];
stu[j + 1] = stu[j];
stu[j] = t;
change = 1;
}
}
if (!change)
break;
}
printf("排序已完成");
}
//图表
void make_chart(void)
{
printf("NUMBER | NAME score\n");
for (int i = 0; i < num_parts; i++)
{
printf("%d | %s ", stu[i].number, stu[i].name);
for (int j = 0; j < stu[i].score; j++)
{
printf("*");
}
printf("\n");
}
printf("图表\n");
}
int confirm(const char *msg)
{
char c = 'n'; // 默认选择是 no
printf("%s(Y/N): ", msg); // 提示输入 yes/no 进行确认
scanf(" %c%*[^\n]", &c); // 读取第一个字符,忽略剩余字符
return c == 'y' || c == 'Y'; // 返回确认结果
}

@ -1,19 +0,0 @@
#define NAME_LEN 31
#define MAX_PARTS 100
// 函数声明
void init(void);
void quit(void);
void display_menu(void);
int make_choice(void);
void read_data(void); // 读取
void save_data(void); // 保存
void print_data(void); // 打印
void query_data(void); // 查询
void add_data(void); // 添加
void update_data(void); // 修改
void delete_data(void); // 删除
void sort_data(void); // 排序
void make_chart(void); // 图表
int confirm(const char *msg);
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