第六节课第二个作业

图片发自简书App

Console.WriteLine("请输入一个年份");

int year = Convert.ToInt32(Console.ReadLine());

Console.WriteLine("请输入一个月份");

int month = Convert.ToInt32(Console.ReadLine());

if (month >= 1 && month <= 12)

{

int day = 0;

switch (month)

{ case 1: case 3: case 5: case 7: case 8: case 10: case 12: day = 31;

break;

case 2:

if ((year % 400 == 0) || (year % 4 == 0 && year % 100 != 0)) { day = 29; }

else { day = 28; } break; default: day = 30; break; }//swich Console.WriteLine("{0}年{1}月有{2}天", year, month, day); }//

if else { Console.WriteLine("月份必须在1~12月之间，程序退出！！！"); } Console.ReadKey();