EEPW论坛

#include "stdio.h"
void main()
{
    int y,m,d,leap=0;
    printf("2013914209\n");
    printf("请输入年份和月份:");
    scanf("%d,%d",&y,&m);
    switch(m)
    {
    case 1:
    case 3:
    case 5:
    case 7:
    case 8:
    case 10:
    case 12:d=31;break;
    case 4:
    case 6:
    case 9:
    case 11:d=30;break;
    case 2:if(y%4==0&&y%100!=0||y%400==0)d=29,leap=1;
      else d=28;break;
        default:printf("ERROR!");
    }
    if(leap)
    printf("%d is a leap year and the month has %d days.",y,d);
    else
    printf("%d is not a leap year and the month has %d days.",y,d);
 

}

心得：这个编程开可以输入年份月份查询天数。。