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@ -293,28 +293,33 @@ Step 2: 打印学生成绩
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### query_data
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Step 1: 输入查询学号
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Step 2: for 0 to num_part-1 查询
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Step 1: for 0 to num_part-1 查询
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Step 2: 输入查询学号
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Step 3: 根据查询结果输出
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
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### add_data
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Step 1: 输入查询学号
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Step 2: for 0 to num_part-1 添加
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Step 1: for 0 to num_part-1 添加
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Step 2: 输入添加学号
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Step 3: if 成立则结束 else 输入学生名称、名次,添加分数, 并提示完成
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Step 4: 结束
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### update_data
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Step 1: 输入查询学号
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Step 2: for 0 to num_part-1 修改
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Step 1: for 0 to num_part-1 修改
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Step 2: 输入修改学号
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Step 3: if 不成立则结束 else 输出学生信息
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Step 4: 结束
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### delete_data
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Step 1:
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Step 1: for 0 to num_part-1 删除
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Step 2: 输入删除学号
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Step 3: if 不成立则结束 else 删除
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### sort_data
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Step 1:
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Step 1: for 0 to num_part-1 排序
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Step 2: 按学生学号从小到大排序
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### make_chart
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Step 1:
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