class1.cs

C#开发教程 由浅入深 配有实例 是初学者的好帮手

using System;

namespace RefTest1
{
	public class Foo
	{
		public int i;
	}

	class RefTest1App
	{
		[STAThread]
		static void Main(string[] args)
		{
			Foo test1 = new Foo();
			test1.i = 1;

			Foo test2 = new Foo();
			test2.i = 2;

			Console.WriteLine(
				"BEFORE OBJECT ASSIGNMENT");
			Console.WriteLine("test1.i={0}", test1.i);
			Console.WriteLine("test2.i={0}", test2.i);
			Console.WriteLine();

			test1 = test2;

			Console.WriteLine(
				"AFTER OBJECT ASSIGNMENT");
			Console.WriteLine("test1.i={0}", test1.i);
			Console.WriteLine("test2.i={0}", test2.i);
			Console.WriteLine();

			test1.i = 42;

			Console.WriteLine(
				"AFTER CHANGE TO ONLY TEST1 MEMBER");
			Console.WriteLine("test1.i={0}", test1.i);
			Console.WriteLine("test2.i={0}", test2.i);
		}
	}
}