判断大小月

#include <stdio.h>

int main () {

    // TODO 请在此处编写代码，完成题目要求

    int i;

    scanf("%d",&i);

    if(i>0&&i<13)

        if(2==i||4==i||6==i||9==i||11==i)

            printf("lunar month");

        else 

            printf("solar month");

    else

    {

         printf("error");

    }

    return 0;

}

#include <stdio.h>
int main () {
int a;
scanf("%d",&a);
switch(a) {
    case 1:
    case 3:
    case 5:
    case 7:
    case 8:
    case 10:
    case 12:
      printf("solar month");
        break;
    case 2:
    case 4:
    case 6:
    case 9:
    case 11:
        printf("lunar month");
        break;
        default:
        printf("error");       
};
return 0;

}

package day04;
import java.util.Scanner;
public class MonthDemo {
public static void main(String[] args) {
System.out.println(“请在控制台输入年份和月份”);
Scanner scan=new Scanner(System.in);
int year=scan.nextInt();
int month=scan.nextInt();
int days=0;
switch(month){

case 2:
boolean flag=(year%4==0&&year%100!=100)||year%400==0;
if(flag){
  days=29;
}else{
  days=28;
}

break;

case 4:

case 6:

case 9:

case 11:

days=30;

break;

default:

days=31;

break;

}

System.out.println(year+“年”+month+“月有”+days+“天”);

}

/**
 * 判断是否是闰年
 */
function isLeapYear(year) {
    return (year % 4 == 0) && (year % 100 != 0 || year % 400 == 0);
}

/**
 * 获取每个月有多少天
 */
function getDaysInMonth(month, year) {
    var days;
    if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) days = 31;
    else if (month == 4 || month == 6 || month == 9 || month == 11) days = 30;
    else if (month == 2) {
        if (isLeapYear(year)) {
            days = 29;
        } else {
            days = 28;
        }
    }
    return (days);
}

/**
 * 计算设计大小和设计屏幕大小之比
 */
function getSize(res, designSize) {
    let clientWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
    if (!clientWidth) return;
    let getSize = (clientWidth / designSize);
    return res * getSize;
}