interfaceexpl.cs

北大青鸟内部资料

using System;

namespace Example_12
{
	///<summary>
	/// 此程序演示显式接口的实现。
	///</summary>

	//第一个接口
	public interface IPict
	{
		int DeleteImage();
		void DisplayImage();
	}

	//第二个接口
	public interface IPictManip
	{
		void ApplyAlpha();
		void DisplayImage();
	}

	public class BaseIO
	{
		public void Open()
		{
			Console.WriteLine("BaseIO 的 Open 方法");
		}
	}

	//一个类和两个接口的实现
	public class MyImages : BaseIO, IPict, IPictManip
	{
		public int DeleteImage()
		{
			Console.WriteLine("DeleteImage 实现！");
			return(5);
		}

		public void ApplyAlpha()
		{
			Console.WriteLine("ApplyAlpha 实现！");
		}

		void IPict.DisplayImage()
		{
			Console.WriteLine("DisplayImage 的 IPict 实现");
		}

		void IPictManip.DisplayImage()
		{
			Console.WriteLine("DisplayImage 的 IPictManip 实现");
		}
	}

	class Test
	{
		///<summary>
		/// 应用程序的主入口点。
		///</summary>
		[STAThread]

		static void Main(string[] args)
		{
			MyImages objM = new MyImages();
			IPict Pict = objM; 			//IPict 引用
			Pict.DisplayImage();
			IPictManip PictManip = objM; 				
			//IPictManip 引用
			PictManip.DisplayImage();
		}
	}
}