https://c.runoob.com/compile/14 在线输入代码验证
using System;
namespace HelloWorldApplication
{
class HelloWorld
{
static void Main(string[] args)
{
Model m=new Model();
m.Name="aa";
Console.WriteLine("aa:"+m.GetHashCode());
change(ref m);
Console.WriteLine(m.Name); //输出?
Console.ReadKey();
}
static void change(ref Model m){
//m=new Model(); //1
m.Name="bb";
m=new Model(); //2
//m=null; //3
////Console.WriteLine("bb:"+m.GetHashCode());
}
}
public class Model
{
public string Name{get;set;}
}
}
1,2处位置互换
3处注释放开
ref去掉
结果分别是什么
原文地址:https://www.cnblogs.com/xuejianxiyang/p/9264546.html
时间: 2024-10-21 11:57:37