~~~ import java.util.*; public class Test{ public static void main(String[] args){ Scanner in =new Scanner(System.in); System.out.println("请输入一个年份"); int year= in.nextInt(); if(year%4==0&&year%100!=0||year%400==0){ System.out.println("这是闰年"); }else{ System.out.println("这是平年"); } } } ~~~