Using C# 2.0 Generics to achieve a reusable Singleton pattern

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一般代码：

    public sealed class Singleton    {        Singleton()        {        }        public static Singleton Instance        {            get            {                return SingletonCreator.instance;            }        }                class SingletonCreator        {            // Explicit static constructor to tell C# compiler            // not to mark type as beforefieldinit            static Nested()            {            }            internal static readonly Singleton instance = new Singleton();        }    }

用模板实现：

    public class SingletonProvider <T> where T:new()    {        SingletonProvider() {}        public static T Instance        {            get { return SingletonCreator.instance; }        }        class SingletonCreator        {            static SingletonCreator() { }            internal static readonly T instance = new T();        }    }

用例：

    public class TestClass    {        private string _createdTimestamp;        public TestClass ()        {            _createdTimestamp = DateTime.Now.ToString();        }        public void Write()        {            Debug.WriteLine(_createdTimestamp);        }    }

使用：

SingletonProvider<TestClass>.Instance.Write();

原地址：

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