用switch语句编程百分制成绩转化为五分制成绩
时间: 2024-11-05 07:29:29 浏览: 81
在编程中,你可以使用switch语句将百分制的成绩转换为五分制成绩。假设有一个变量`score`表示学生的百分制分数,下面是简单的示例,如何使用JavaScript编写这样的转换:
```javascript
function convertToFiveGrade(score) {
switch (true) {
case score >= 90:
return 'A*';
case score >= 85:
return 'A';
case score >= 80:
return 'B+';
case score >= 75:
return 'B';
case score >= 70:
return 'C+';
case score >= 65:
return 'C';
case score >= 60:
return 'D+';
case score >= 55:
return 'D';
default:
return 'F'; // 对于低于55分的情况,默认返回"F"
}
}
```
在这个例子中,`switch`结构检查`score`值处于哪一范围,并相应地返回对应的五分制等级。每个`case`块都包含一个条件判断,如果`score`满足该条件,则执行相应的分支。
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