switch语句错在哪了？
#include <stdio.h>main(){char grade;scanf("%c",grade);switch(grade){case 'a':printf("85~100\n"); break;case 'b':printf("70~84\n"); break;case 'c':printf("60~69\n"); break;case 'd':printf("<60\n"); break;default :printf("error\n");}getch();}
参考答案:scanf("%c",&grade);