private static ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name);public static UserInfo Instance { get { return Linstance.Value; } }private static readonly Lazy
     
       Linstance = new Lazy
      
       (() => return new UserInfo(););
      
     

访问时直接访问 Instance 即可。 来自：