优化

NB_IOT_TCP_HP_SOCKET/MainForm_TCP.cs

@@ -1359,10 +1359,13 @@ namespace NB_IOT_TCP_HP_SOCKET
                                 }
                                 if (cm.IsEnd)
                                 {
-                                    // 保存抄表数据
-                                    //ProtocolAnalysisTools.SaveRecord(list);
-                                    ProtocolAnalysisTools.SaveRecordNew(meterHis[sourceNumber]);
-                                    meterHis.Remove(sourceNumber);
+                                    if (meterHis.Count > 0 && meterHis.ContainsKey(sourceNumber))
+                                    {
+                                        // 保存抄表数据
+                                        //ProtocolAnalysisTools.SaveRecord(list);
+                                        ProtocolAnalysisTools.SaveRecordNew(meterHis[sourceNumber]);
+                                        meterHis.Remove(sourceNumber);
+                                    }
                                 }
                             }
                         }