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@ -373,24 +373,28 @@ Step 3:如果k与i不相等，每一课的成绩交换，总分，平均分，
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````
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5·按选择法将数组num的元素值按从低到高排序
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AsSortbyNum
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step 1:对前两元素进行比较
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step 2:如果前一个数大于后一个数，则把前数放在前面
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step 3:对上一操作进行循环，依次比较
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step 4:最后依次罗列元素
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````
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````
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6·交换法实现字符串按字典顺序排序
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SortbyName
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step 1:对前两元素进行比较
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step 2:如果前一个数大于后一个数，则把两数交换
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step 3:对上一操作进行循环，交换位置的索引
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step 4:最后依次罗列元素
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````
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````
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7.按学号查找学生成绩并显示查找结果
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SearchbyNum
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````
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````
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8·按姓名的字典顺序排出成绩表
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SearchbyName
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````
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````
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9·统计各分数段的学生人数及所占的百分比
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StatisticAnalysis
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