C：教材例题p19-2.3

CSTHenry

#include<stdio.h>
int main()
{
    for (int year = 2000; year <= 2500;year++)
    {
        if(year%4==0&&year%100!=0)
        {
            printf("%d是闰年.\n", year);
        }
        else if(year%400==0)
        {
        printf("%d是闰年.\n", year);
        }
        else printf("%d不是闰年.\n", year);
    }
    system("pause");
    return 0;
}