今天才搞清楚：原来在C#中对象作函数参数，是引用传递：）

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

namespace ConsoleApplication6
...{
    public class Program
    ...{
        static void Main(string[] args)
        ...{
            aaa obj = new aaa("yourname");
            initAge(obj);
            Console.WriteLine(obj.Age.ToString());

            bbb obj2 = new bbb("yourname",10);
            initAge2(obj2);
            Console.WriteLine(obj2.Age.ToString());
        }

        public static void initAge(aaa obj)
        ...{
            obj.Age = 26;
        }
        public static void initAge2(bbb obj)
        ...{
            obj.Age = 26;
        }

    }
    
    public class aaa
    ...{
        private string _name;
        private int _age;
        
        public string Name
        ...{
            get...{ return this._name; }
            set...{ this._name = value; }
        }
        public int Age
        ...{
            get ...{ return _age; }
            set ...{ _age = value; }
        }

        public aaa(string name)
        ...{
            this._name = name;
        }

    }

    public struct bbb
    ...{
        private string _name;
        private int _age ;

        public string Name
        ...{
            get ...{ return this._name; }
            set ...{ this._name = value; }
        }
        public int Age
        ...{
            get ...{ return _age; }
            set ...{ _age = value; }
        }

        public bbb(string name,int age)
        ...{
            this._name = name;
            this._age = age;
        }

   }


}

 试一下上面的代码便知：——）

平时在写代码的过程中，一直都似是而非，今天才彻底搞清楚。别笑话我啊，唉，确实比较菜啊。