[求助]百思不解，这个程序到底哪不对呀？大家帮我看看
main(){int x;
scanf("%d",&x);
switch(x)
{
case '90':
case '91':
case '92':printf("Score is A\n");
break;
case '89':printf("Score is B\n");
}
}
无论输入90还是91，92 都不执行printf(~~~)语句。请高手 指点~
printf(\"路漫漫其修远兮,吾将上下而求所!\")
