5_11.cpp

C程序参考,简单易懂,是初学者不可少的参考资料

#include<stdio.h>
main()
 {
     int year,month,days;
     printf("Please input year,month:");
     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%400==0||year%4==0&&year%100!=0)
                 days=29;
             else
                 days=28;
             break;
     }
     printf("The number of days of %d,%d is %d.\n",month,year,days);
}