单例singleton

public class Test
    {
        #region 单例
        ///<summary>
        ///单例对象
        ///</summary>
        private static Singleton<Test> Singleton;
        ///<summary>
        ///实例
        ///</summary>
        public static Test Instance
        {
            get
            {
                if (Singleton == null)
                {
                    Singleton = new Singleton<Test>();
                }
                return Singleton.Instance;
            }
        }
    }