比较自定义对象的时候要重写Equals方法
using System;
using System.Collections.Generic;
using System.Text;
namespace Equal
{
using System;
class Test
{
public static void Main()
{
Person p1 = new Person("A", 1);
Person p2 = new Person("A", 1);
if (p1.Equals (p2))
{
Console.WriteLine("true");
}
else
{
Console.WriteLine("false");
}
}
}
class Person
{
private string name;
private int age;
public Person()
{
this.name = "";
this.age = 0;
}
public Person(string name, int age)
{
this.name = name;
this.age = age;
}
//重写Equals方法
public override bool Equals(object obj)
{
if (obj == null)
{
return false;
}
if ((obj.GetType().Equals(this.GetType())) == false)
{
return false;
}
Person temp = null;
temp = (Person)obj;
return this.name.Equals(temp.name) && this.age.Equals(temp.age);
}
//重写GetHashCode方法（重写Equals方法必须重写GetHashCode方法，否则发生警告
public override int GetHashCode()
{
return this.name.GetHashCode() + this.age.GetHashCode();
}
}
}
