IEqualityComparer 接口使用

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine(10<<2);
}

private static void NewMethod1()
{
List<Persion> list = new List<Persion>
{
new Persion() {name="Jack",age=20,address="XX"},
new Persion() {name="Rose",age=21,address="X2"} ,
new Persion() {name="Rose",age=20,address="XX"} ,
new Persion() {name="Jack",age=20,address="XX"}
};

list = list.Distinct(new PersionCompare()).ToList();
}
public class PersionCompare : IEqualityComparer<Persion>
{
public bool Equals(Persion x, Persion y)
{
return x.name == y.name && x.age == y.age && x.address == y.address;
}

public int GetHashCode(Persion obj)
{
if (Object.ReferenceEquals(obj, null))
{
return 0;
}
int name = obj.name == null ? 0 : obj.name.GetHashCode();
int age = obj.age.GetHashCode();
int address = obj.address == null ? 0 : obj.address.GetHashCode();
int hasCode = name ^ age ^ address;
Console.WriteLine(hasCode);
return hasCode;

}
}
private static Dictionary<string, string> GetSysFlag
{
get
{
Dictionary<string, string> dic = new Dictionary<string, string>();
string urlQuery = "".Replace("?", "");
foreach (string s in urlQuery.Split('&'))
{
string[] urs = s.Split('=');
if (urs.Length >= 2 && urs[0] != "") dic[urs[0]] = urs[1];
}
return dic;
}
}
private static void NewMethod()
{
string identityCard = "42062419881113292x";
string birthday = "";
string sex = "";
if (identityCard.Length == 18)//处理18位的身份证号码从号码中得到生日和性别代码
{
birthday = identityCard.Substring(6, 4) + "-" + identityCard.Substring(10, 2) + "-" + identityCard.Substring(12, 2);
sex = identityCard.Substring(14, 3);
}
if (identityCard.Length == 15)
{
birthday = "19" + identityCard.Substring(6, 2) + "-" + identityCard.Substring(8, 2) + "-" + identityCard.Substring(10, 2);
sex = identityCard.Substring(12, 3);
}

if (int.Parse(sex) % 2 == 0)//性别代码为偶数是女性奇数为男性
{
sex = "女";
}
else
{
sex = "男";
}
Console.WriteLine("出生" + birthday + "性别：" + sex);
}
}
public class Persion
{
public string name { get; set; }
public int age { get; set; }
public string address { get; set; }
}
}