我有一个类似这样的单例类publicclassSingleton{privatestaticSingletonm_instance;privateTimerm_timer;privatestaticListm_cacheObjects;privateSingleton(){m_cacheObjects=newList();m_timer=newTimer(MyTimerCallBack,null,TimeSpan.FromSeconds(60),TimeSpan.FromSeconds(60));}publicstaticSingletonInstance{get{if(m_insta