1#region 单例模式2#region 线程非安全单例模式3publicclass Singleton14 {5private Singleton1() { }6privatestatic Singleton1 testdemo1 = null;7publicstatic Singleton1 GetSingleton()8 {9if (testdemo1 == null) 10returnnew Singleton1(); 11else12return testdemo1; 13 } 14 } 15#endregion16#region 线程安全单例模式 17publicclass Singleton 18 { 19private Singleton() { } 20privatestatic S...