实例1 -- 判断输入年份是否为闰年

import java.util.*;

public class LeapYear{
public static void main(String[] args){
Syste.out.println("请输入年份:");
Scanner sc = new Scanner(System.in);

int year = sc.nextInt();
if(year%4 == 0 && year%100 != 0 || year%400 == 0){
System.out.println(year + "年是闰年");
}else{
System.out.println(year + "年非闰年");
}

}
}

#coding=utf-8

year = int(raw_input('请输入年份:'))
if year%4 == 0 and year%100 != 0 or year%400 == 0:
　　print year,'年是闰年'
else:
　　print year,'年非闰年'