输入成绩查看等级
#include<stdio.h>
int main(void)
{
intscore;
chargrade;
while(1)
{
printf("请输入成绩!!\n");
scanf("%d",&score);
if(score>=90)
grade=\'A\';
if(score>=80&& score<90)
grade=\'B\';
if(score>=70&&score<80)
grade=\'C\';
if(score>=60&&score<70)
grade=\'D\';
if(score>=50&&score<60)
grade=\'E\';
if(score>=40&&score<50)
grade=\'F\';
printf("您的分数:%d,等级:%c\n",score,grade);
}
return0;
}