#include <stdio.h>
main()
{
int a;
float x;
scanf("%d%f",&a,&x);
switch(x){
case 3.14: printf("PI=%f\n",x);
case a: printf("a=%d\n",a);
case 'a'+1: printf("It is %c\n",x);break;
default: printf("Unknown!\n");break;
case 98: printf("It is %c\n",x);break;
}
return 0;
}
哪里错了,求解。。。。