using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace _9对像的引用2{    class Program    {        static void Main(string[] args)        {            int i = 10;            int j = i; //拷贝            i++;            Console.WriteLine(j);            //int, datetime,bool,char等类型都属于值类型(ValueType),赋值的时候是传递拷贝            //普通的对则是引用类型，赋值的时候是传递引用            Person p1 = new Person(11);            Person p2 = p1;//指向同一个类型            p1.Age++;            IncAge(p1);            Console.WriteLine(p2.Age);//13            Console.ReadKey();        }        static void IncAge(Person s)         {            s.Age++;        }    }    class Person     {        public int Age { get; set; }        public Person(int age) {            this.Age = age;        }    }}