输入一个百分制分数，输出对应的五级计分等级的 C语言程序

Question

如题所述

Answer 1

#include<stdio.h>
void main()
{
float score;
int n;
printf("请输入一个学生的分数\n");
scanf("%f",&score);
n=(int)score;
switch(n/10)
{case 0:
case 1:
case 2:
case 3:
case 4:
case 5:printf("E 等级\n");break;
case 6:printf("D 等级\n");break;
case 7:printf("C 等级\n");break;
case 8:printf("B 等级\n");break;
case 9:
case 10:printf("A 等级\n");break;
default:printf("您输入的数据有误,请重新输入\n");
}
}

Answer 2

int level = 0;
cin >> level;
int newLevel;
if(level<0 || level>100)
{
newLevel = 0;
}
else
{
newLevel = (level-1)/20+1;
}
switch (newLevel)
{
case 1:
cout << newLevel;
break;
case 2:
cout << newLevel;
break;
case 3:
cout << newLevel;
break;
case 4:
cout << newLevel;
break;
case 5:
cout << newLevel;
break;
default:
cout << 0;
break;
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