用C语言计算a年b月有多少天,怎么弄啊

发布网友发布时间：2023-03-07 14:49

共1个回答

热心网友时间：2023-10-08 18:09

#include <stdio.h>

int main(void)
{
        int year, mouth;
        int num;

        printf("Input year: ");
        scanf("%d", &year);

        printf("Input mouth: ");
        scanf("%d", &mouth);

        num = 0;
        switch( mouth )
        {
                case 1: case 3: case 5: case 7: case 8: case 10: case 12:
                num = 31; break;

                case 4: case 6: case 9: case 11:
                num = 30; break;

                case 2:
                if( (year%400 == 0) || (year%4 == 0 && year%100 != 0))
                        num = 29;
                else
                        num = 28;
                break;

                default: num = 0;
                printf("Input error mouth.\n");
                num = 0; break;
        }

        if( num != 0)
                printf("There are %d days in %d mouth.\n", num, mouth);

        return 0;
}