错在哪呀..
#include <stdio.h>
int main()
{
/* 定义需要计算的日期 */
int year = 2008;
int month = 8;
int day = 8;
/*
* 请使用switch语句，if...else语句完成本题
* 如有想看小编思路的，可以点击左侧任务中的“不会了怎么办”
* 小编还是希望大家独立完成哦~
*/
int sum;
switch(day)
{
case 1;sum=day;break;
case 2;sum=31+day;break;
case 3;
if(year%4==0)
{
sum=31+29+day;
break;
}
else
{
sum=31+28+day;
break;
}
case 4;
if(year%4==0)
{
sum=31+29+31+day;
break;
}
else
{
sum=31+28+31+day;
break;
}
case 5;
if(year%4==0)
{
sum=31+29+31+30+day;
break;
}
else
{
sum=31+28+31+30+day;
break;
}
case 6;
if(year%4==0)
{
sum=31+29+31+30+31+day;
break;
}
else
{
sum=31+28+31+30+31+day;
break;
}
case 7;
if(year%4==0)
{
sum=31+29+31+30+31+30+day;
break;
}
else
{
sum=31+28+31+30+31+30+day;
break;
}
case 8;
if(year%4==0)
{
sum=31+29+31+30+31+30+31+day;
break;
}
else
{
sum=31+28+31+30+31+30+31+day;
break;
}
case 9;
if(year%4==0)
{
sum=31+29+31+30+31+30+31+31+day;
break;
}
else
{
sum=31+28+31+30+31+30+31+31+day;
break;
}
case 10;
if(year%4==0)
{
sum=31+29+31+30+31+30+31+31+30+day;
break;
}
else
{
sum=31+28+31+30+31+30+31+31+30+day;
break;
}
case 11;
if(year%4==0)
{
sum=31+29+31+30+31+30+31+31+30+31+day;
break;
}
else
{
sum=31+28+31+30+31+30+31+31+30+31+day;
break;
}
case 12;
if(year%4==0)
{
sum=31+29+31+30+31+30+31+31+30+31+30+day;
break;
}
else
{
sum=31+28+31+30+31+30+31+31+30+31+30+day;
break;
}
}
printf("%d年%d月%d日是该年的第几%d天"，year,month,day,sum);
return 0;
}
