Question

DEV c++ 无法编译

代码如下
# include <stdio.h>

int main (void)
{
int grade,acount=0,bcount=0,ccount=0,dcount=0,fcount=0;

printf("Enter the letter grade.\n");
printf("Enter the EOF character to end input.\n");

while ((grade = getchar())!= EOF ) {

switch (grade){

case 'a':
++acount;
break;
case 'b':
++bcount;
break;
case 'c':
++ccount;
break;
case 'd':
++dcount;
break;
case 'f':
++fcount;
break;
case '\n':
case '\t':
case '' :
break;
default:
printf("OKAY?");
printf("Please Again!!!\n");
break;
}
}
printf("\n\nTotals for each letter grade are:\n");
printf("A:%d\n",acount) ;
printf("B:%d\n",bcount) ;
printf("C:%d\n",ccount) ;
printf("D:%d\n",dcount) ;
printf("F:%d\n",fcount) ;

return 0;
}
无法编译为exe啊,高手帮帮,我很菜的~~

Answer 1

我调试了一下
编译不通过原因出现在

case '':
不可以这么写
既然输入了这么可能为空呢？
根据程序感觉是
case ' ': ？

而且#和include中间不能有空格