借用implicit創建我們自己的布爾數據類型-create MyBool data type by implicit－互聯網

文章出處

此idea是由我處理一個帖子的時候突然蹦出來的，感覺可能有的朋友需要，就將我的回復帖在我的blog，由于時間問題，我沒有寫中文版的，而是直接用的英文，希望大家見諒，不過代碼會告訴大家我的思路，其實也沒多少可以解釋的，我認為這只是一個小技巧罷了。

I use the Implicit Conversion Operator to help us do the similar things as we inherit from the Boolean type, but MyBool type is not a Boolean type.

And then we can override some methods like Equal method, ToString method and so on.

class TestProgram
{
  static void Main(string[] args)
  {
    MyBool mb = true;
    mb.PrintMessage("hello MyBool DataType!");
    Console.WriteLine(mb.ToString());
    Console.ReadLine();
  }
}
public class MyBool 
{
  private bool myBool;
  public MyBool() { }
  public MyBool(bool b) 
  {
    myBool = b;
  }

  // implicit bool to MyBool conversion operator
  public static implicit operator MyBool(bool b) 
  {      
    return new MyBool(b); // implicit conversion
  }

  // implicit MyBool to bool conversion operator
  public static implicit operator bool(MyBool mb) 
  {
    return mb.myBool; // implicit conversion
  }

  public void PrintMessage(string msg) 
  {
    Console.WriteLine(msg);
  }

  public string ToString() 
  {
    return myBool.ToString();
  }
}