求哪位大神可以帮我看看到底是哪里错了?
#include <stdio.h>
int main()
{
int year = 2008;
int month = 8;
int day = 8;
int num=0;
switch(month)
case 1;
num=0;
break;
case 2;
num=30;
break;
case 3;
num=59;
break;
case 4;
num=90;
break;
case 5;
num=120;
break;
case 6;
num=151;
break;
case 7;
num=181;
break;
case 8;
num=212;
break;
case 9;
num=243;
break;
case 10;
num=273;
break;
case 11;
num=304;
break;
case 12;
num=334;
break;
if(year%4==0)
{
num+=1;
}
num+=day;
printf("%d\n",day);
return 0;
}