#include <stdio.h> int main(){ int year; printf("输入年份: "); scanf("%d",&year); if(year%4 == 0) { if( year%100 == 0) { if ( year%400 == 0) printf("%d 是闰年", year); else printf("%d 不是闰年", year); } else printf("%d 是闰年", year ); } else printf("%d 不是闰年", year); return 0;}
