package com.xm.test1;
import java.util.Scanner;
public class cat_information {
    public static  void main(String[] args){
      Scanner input=new Scanner(System.in);
      System.out.println("请输入年：");
      int year=input.nextInt();
      System.out.println("请输入月：");
      int month=input.nextInt();
      switch (month){
          case 1,3,5,7,8,10,12:
              System.out.println(year+'年'+month+"月"+"有31天");
              break;
          case 4,6,9,11:
              System.out.println(year+'年'+month+"月"+"有30天");
          case 2:
              //判断是否为闰年
              if (year%4==0&&year%100!=0||year%400==0){
                  System.out.println(year+'年'+month+"月"+"有29天");
              }
              else{
                  System.out.println(year+'年'+month+"月"+"有28天");
              }
      }
    }
}