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  1. using System;
  2.  
  3. namespace ConsoleApplication5
  4. {
  5.     public class Myclass
  6.     {
  7.         public string value1, value2;
  8.     }
  9.  
  10.     class Program
  11.     {
  12.         static void Main(string[] args)
  13.         {
  14.             Myclass myclass = new Myclass();
  15.             myclass.value1 = "100";
  16.             Console.WriteLine("Change前" + myclass.value1);
  17.             Change(myclass);
  18.             Console.WriteLine("Change後:" + myclass.value1);
  19.             myclass.ChangeExtension("909");
  20.             Console.WriteLine("ChangeExtension後" + myclass.value1);
  21.             Console.ReadKey();
  22.  
  23.         }
  24.  
  25.         static void Change(Myclass _myclass)
  26.         {
  27.             _myclass.value1 = "999";
  28.         }
  29.     }
  30.  
  31.     public static class Extensions
  32.     {
  33.         public static void ChangeExtension(this Myclass _myclass, string value)
  34.         {
  35.             _myclass.value1 = value;
  36.         }
  37.     }
  38. }
  39.  
Success #stdin #stdout 0s 131648KB
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Standard input is empty
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Change前100
Change後:999
ChangeExtension後909
https://ideone.com/KGRQGt
language:
C# (gmcs 5.20.1)
created:
7 years ago
visibility:
public

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