代码如下:
#include <stdio.h>int main(){int year,month,days;printf("请输入年月\n");scanf("%d%d",&year,&month);switch(month){case 1:case 3:case 5:case 7:case 8:case 10:case 12: days=31;break;case 4:case 6:case 9:case 11: days = 30;break;case 2:if((year%4==0)&&(year%100!=0)||year%400==0){days = 29;}else {days = 28;}break;default: printf("输入的年月有问题");}printf("year=%d,month=%d,days=%d\n",year,month,days);return 0;}