diff --git a/src/JiShe.CollectBus.Protocol/StandardProtocolPlugin.cs b/src/JiShe.CollectBus.Protocol/StandardProtocolPlugin.cs
index 8233b99..a6918fd 100644
--- a/src/JiShe.CollectBus.Protocol/StandardProtocolPlugin.cs
+++ b/src/JiShe.CollectBus.Protocol/StandardProtocolPlugin.cs
@@ -27,19 +27,28 @@ namespace JiShe.CollectBus.Protocol
             var aTuple = (Tuple<string, int>)hexStringList.GetAnalyzeValue(CommandChunkEnum.A);
             var afn = (int)hexStringList.GetAnalyzeValue(CommandChunkEnum.AFN);
             var fn = (int)hexStringList.GetAnalyzeValue(CommandChunkEnum.FN);
-            if (afn == (int)AFN.请求实时数据)
+            switch ((AFN)afn)
             {
-                if (Enum.IsDefined(typeof(ATypeOfDataItems), fn)) //Enum.TryParse(afn.ToString(), out ATypeOfDataItems parseResult)
-                {
-                    AnalyzeReadingDataAsync(messageReceived, sendAction);
-                }
-            }
-            else if(afn == (int)AFN.请求历史数据)
-            {
-                if (Enum.IsDefined(typeof(IIdataTypeItems), fn))
-                {
-                    AnalyzeReadingTdcDataAsync(messageReceived, sendAction);
-                }
+                case AFN.确认或否认:
+                    AnalyzeAnswerDataAsync(messageReceived, sendAction);
+                    break;
+                case AFN.设置参数: break;
+                case AFN.查询参数: break;
+                case AFN.请求实时数据:
+                    if (Enum.IsDefined(typeof(ATypeOfDataItems), fn)) //Enum.TryParse(afn.ToString(), out ATypeOfDataItems parseResult)
+                    {
+                        AnalyzeReadingDataAsync(messageReceived, sendAction);
+                    }
+                    break;
+                case AFN.请求历史数据:
+                    if (Enum.IsDefined(typeof(IIdataTypeItems), fn))
+                    {
+                        AnalyzeReadingTdcDataAsync(messageReceived, sendAction);
+                    }
+                    break;
+                case AFN.数据转发:
+                    AnalyzeTransparentForwardingAnswerAsync(messageReceived, sendAction);
+                    break;
             }
 
             throw new NotImplementedException();