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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; //Singleton设计模式(单实例) namespace ConsoleApplication6 { class Program { static void Main(string[] args) { //案例: Singleton s = Singleton.getSingleton(); s.name = "asd"; Singleton s1 = Singleton.getSingleton(); s1.ShowMsg(); Console.ReadKey(); } } class Singleton { //静态类(自己) private static Singleton singleton = null; //私有构造函数 private Singleton() { } public static Singleton getSingleton() { if (singleton == null) singleton = new Singleton();//实例化 return singleton; } public string name { get; set; } public void ShowMsg() { Console.WriteLine(name); } } }