引用类型实例

sealed class UserModel { private string _UserName; private int _UserAge; public int UserAge { get { return _UserAge; } set { _UserAge = value; } } public string UserName { get { return _UserName; } set { _UserName = value; } } public UserModel(string name, Int32 age) { UserName = name; UserAge = age; } public void DisplayMember() { Console.WriteLine("UserName:{0},UserAge:{1}", this.UserName, this.UserAge); } public static void SendUserDateByValue(UserModel user) { user.UserAge = 34; user = new UserModel("周宇朝", 21); } }输出结果：UserName：CSDN,UserAge:34