using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Compare
{
class Program
{
static void Main(string[] args)
{
// Person p1 = new Person();
// p1.Name = "小强";
// p1.Age = 18;
// Person p2 = new Person();
// p2.Name = "小强";
// p2.Age = 18;
// //Equals 不准确
//// if (p1==p2)
// if(p1.Equals(p2))
// {
// Console.WriteLine("同一个对象");
// }
// else
// {
// Console.WriteLine("不是同一个对象");
// }
string s1 = "123";
string s2 = "123";//new string(new char[]{'1','2','3'});
//if (s1==s2)
//if(s1.Equals(s2))
//只要看是否占同一内存
if (object.ReferenceEquals(s1, s2))
{
Console.WriteLine("同一个对象");
}
else
{
Console.WriteLine("不是同一个对象");
}
Console.ReadKey();
}
}
class Person
{
public string Name { get; set; }
public int Age { get; set; }
public override bool Equals(object obj)
{
Person pp = (Person)obj;
if (this.Name == pp.Name && this.Age == pp.Age)
{
return true;
}
return false;
}
}
}