delegatedemo.cs

vc的原码例子12 vc的原码例子12

using System;

class clsDelegateDemo
{
	public delegate void ShowMessage(string Message);
	public static ShowMessage DelegateHolder = null;

	public static void Main ()
	{
		DelegateHolder = new ShowMessage(UpperMessage);

		DelegateHolder("Jamsa's C/C++/C# Programmer's Bible");
   
		DelegateHolder = new ShowMessage(LowerMessage);

		DelegateHolder("Jamsa's C/C++/C# Programmer's Bible");
	}

	private static void UpperMessage(string Message)
	{
		Console.WriteLine(Message.ToUpper());
	}

	private static void LowerMessage(string Message)
	{
		Console.WriteLine(Message.ToLower());
	}
}