ref.cs

深入浅出C＃,学习C#比较好的用例,能够很快掌握C#.

using System;

class MyClass
{
	public void F(ref int i)
	{
		i=3;
	}
}

class Test
{
	int i=0;//要作为引用参数传递的变量必须明确赋值
	public static void Main()
	{
		Test test=new Test();
		Console.WriteLine("the value of i is:{0}",test.i);
		MyClass myclass=new MyClass();
		myclass.F(ref test.i);//i作为引用参数传递
		Console.WriteLine("now the value of  i is:{0}",test.i);//i的值改变
	}
}