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@ -207,6 +207,21 @@ a: No such file or directory
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显示菜单命令。
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#### 详细设计
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####main
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Step 1: 初始化
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Step 2: 根据用户选择的命令执行对应的操作
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Step 2.1: 显示菜单
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Step 2.2: 选择菜单命令 c
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Step 2.3: if c == CMD_READ then 读取数据
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Step 2.4: if c == CMD_SAVE then 保存数据
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Step 2.5: if c == CMD_PRINT then 打印数据
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Step 2.6: if c == CMD_QUERY then 查询数据
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Step 2.7: if c == CMD_INSERT then 添加数据
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Step 2.8: if c == CMD_UPDATE then 修改数据
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Step 2.9: if c == CMD_DELETE then 删除数据
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Step 2.10: if c == CMD_SORT then 数据排序
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Step 2.11: if c == CMD_CHART then 导出图表
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Step 2.12: if c == CMD_QUIT then 退出程序
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