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@ -382,6 +382,15 @@ Step 2: 显示图表
![](pictures/make_chart.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)
#### confirm
Step 1: 输出 确定要退出吗

@ -0,0 +1,129 @@
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delete_data
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学号存在?
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已更新
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已更新
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