这样不算错吧

#include <stdio.h>

int main() 

{ 

    /* 定义需要计算的日期 */

    int year = 2008;

    int month = 8;

    int day =8;

    int d=day;

    int February ;

    if (year%4==0)

    {

        February=29;

    }

    else February=28;

    switch (month)

    {

    case 1:day;break;

    case 2:day+=31;break;

    case 3:day+=31+February+30;break;

    case 4:day+=31*2+February;break;

    case 5:day+=31*3+February;break;

    case 6:day+=31*3+February+30;break;

    case 7:day+=31*3+February+30*2;break;

    case 8:day+=31*4+February+30*2;break;

    case 9:day+=31*5+February+30*2;break;

    case 10:day+=31*5+February+30*3;break;

    case 11:day+=31*6+February+30*3;break;

    default:day+=31*6+February+30*4;break;

    }

    printf("%d年%d月%d日是该年中的第%d天。",year,month,d,day);

    return 0;