main(){
int a=0;
printf("請輸入年齡:");
scanf("%d",&a);
switch(a)
{
case 1:
printf("Lower class");
break;
case 2:
printf("Lower class");
break;
case 3:
printf("Lower class");
break;
case 4:
printf("Middle class");
break;
case 5:
printf("Can't enter");
break;
case 6:
printf("Can't enter");
break;
default:
printf("no handl!");
break;
}
}