作業3.年を入力して、閏年か平年かを判断します.

 1 using System;

 2 using System.Collections.Generic;

 3 using System.Linq;

 4 using System.Text;

 5 

 6 namespace ConsoleApplication1

 7 {

 8     class  

 9     {

10         static void Main(string[] agre)

11         {

12             Console.Write(" ：");

13             string a = Console.ReadLine();

14             int year = Convert.ToInt32(a);

15 

16             if (year % 400 == 0)

17             {

18                 Console.WriteLine(year + " ");

19             }

20             else if (year % 4 == 0 && year % 100 != 0)

21             {

22                 Console.WriteLine(year + " ");

23                

24             }

25             else

26             {

27                 Console.WriteLine(year + " ");

28             }

29         }

30     }

31 }