private void DoGetPersonTreeAsync(Action <AreaNode> callback) { Log.Info("GetPersonTreeAsync Start >>>>>>>>>>"); var clet = GetServiceClient(); //Debug.LogError("BeginGetPersonTreeAsync........"); int view = 2; //0:基本数据; 1:设备信息; 2:人员信息; 3:设备信息 + 人员信息 clet.BeginGetPhysicalTopologyTreeNode(view, (ar) => { AreaNode result = null; try { LocationServiceClient client = ar.AsyncState as LocationServiceClient; //Debug.LogError("EndGetPersonTreeAsync........"); result = client.EndGetPhysicalTopologyTreeNode(ar); client.Close();//异步方式用完Close } catch (Exception ex) { LogError("CommunicationObject", ex.ToString()); } DoCallBack(callback, result); if (result == null) { LogError("GetPersonTreeAsync", "result == null"); } Log.Info("GetPersonTreeAsync End <<<<<<<<"); }, clet); //clet.Close(); }