Question

switch expression not integral 差错提示这个 不是很懂 什么意思

#include<stdio.h>
main()
{
float score;
scanf("%f",&score);
switch(score/10)
{
case 10:
case 9:printf("A\n");break;
case 8:printf("B\n");break;
case 7:printf("C\n");break;
case 6:printf("D\n");break;
default:printf("E\n");
}
}

Answer 1

float score;改为int score;

Answer 2

switch里要输入整型变量