diff --git a/myClient b/myClient
index b0d057b..27cb1ae 100755
Binary files a/myClient and b/myClient differ
diff --git a/myClient.c b/myClient.c
index b45465f..0fe9c4e 100644
--- a/myClient.c
+++ b/myClient.c
@@ -163,7 +163,55 @@ u32 UA_ReadList(long ConnectionHdl,u16 NodeHdlCount,long *NodeHdls,UANodeAdditio
     return retval;
 }
 
-void readTest(long ConnectionHdl,u16 NodeHdlCount,long *NodeHdls,u32 ErrorIDs[])
+u32 UA_WriteList(long ConnectionHdl,u16 NodeHdlCount,long *NodeHdls,UANodeAdditionalInfo *NodeAddInfos,UA_Value *variables,u32 ErrorIDs[]){
+	UA_Client *c = (UA_Client*)ConnectionHdl;
+	int i;
+	UA_StatusCode retval=0;
+	if(NodeHdlCount>MAX_ELEMENTS_NODELIST){
+		retval=0xA0000002;
+		return retval;
+	}
+	//UA_NodeId NODEid= UA_NODEID_STRING(1, "A1.the anwser2");
+	//UA_Client_writeValueAttribute(c,NODEid,&in);
+	UA_WriteValue wValue[NodeHdlCount];
+	for(i=0;i<NodeHdlCount;i++){
+		UA_WriteValue_init(&wValue[i]);
+	 	wValue[i].nodeId = *(UA_NodeId*)NodeHdls[i];
+	 	//wValue[i].nodeId = NODEid;
+	 	wValue[i].attributeId = NodeAddInfos[i].AttributeID;
+	 	if(NodeAddInfos[i].AttributeID == UA_ATTRIBUTEID_VALUE){
+	 		UA_Variant in;
+			UA_Variant_init(&in);
+			UA_Variant_setScalar(&in,variables[i].data,&UA_TYPES[variables[i].type-1]);
+         	wValue[i].value.value = in;
+			wValue[i].value.hasValue = true;
+	 	}
+	 	else{
+	 		UA_Variant_setScalar(&wValue[i].value.value, (void*)(uintptr_t)variables[i].data, &UA_TYPES[variables[i].type-1]);
+		}
+	}
+	UA_WriteRequest wReq;
+	UA_WriteRequest_init(&wReq);
+	wReq.nodesToWrite = &wValue[0];
+	wReq.nodesToWriteSize = NodeHdlCount;
+
+	UA_WriteResponse wResp = UA_Client_Service_write(c, wReq);
+
+	retval = wResp.responseHeader.serviceResult;
+	if(retval==UA_STATUSCODE_GOOD){
+		if(wResp.resultsSize==NodeHdlCount){
+			for(i=0;i<NodeHdlCount;i++){
+				ErrorIDs[i]=wResp.results[i];
+			}
+		}else{
+			retval=UA_STATUSCODE_BADUNEXPECTEDERROR;
+		}
+	}
+	UA_WriteRequest_clear(&wResp);
+	return retval;
+}
+
+void readTest(long ConnectionHdl,u16 NodeHdlCount,long *NodeHdls,UA_Value *variables,u32 ErrorIDs[])
 {
     UA_Client *c = (UA_Client*)ConnectionHdl;
 	int i;
@@ -189,9 +237,87 @@ void readTest(long ConnectionHdl,u16 NodeHdlCount,long *NodeHdls,u32 ErrorIDs[])
         request.nodesToReadSize = 1;
         UA_ReadResponse response = UA_Client_Service_read(c, request);
         retval = response.responseHeader.serviceResult;
+        if(retval == UA_STATUSCODE_GOOD)
+        {
+            printf("------------#3---------------\n");
+            printf("%d\n",response.resultsSize);
+            if(response.resultsSize==NodeHdlCount)
+            {
+                printf("------------#4---------------\n");
+                for (i = 0; i < NodeHdlCount; i++)
+                {
+                    ErrorIDs[i]=response.results[i].status;
+                }
+                retval = 0 ;
+                for(i=0;i<NodeHdlCount;i++)
+                {
+                    if(ErrorIDs[i]==UA_STATUSCODE_GOOD)
+                    {
+                        printf("------------#5---------------\n");
+                        UA_DataValue res = response.results[i];
+                        if(!res.hasValue)
+                        {
+                            printf("------------#6---------------\n");
+                            UA_ReadResponse_clear(&response);
+                            retval =  UA_STATUSCODE_BADUNEXPECTEDERROR;
+                        }
+						else
+						{
+  							memcpy(variables[i].data,res.value.data,8);
+							variables[i].type=UA_TYPES_NODECLASS;
+						}
+						UA_free(res.value.data);   //?????   need or not
+					}
+                }  //end for
+            }
+            else
+            {
+
+                retval = UA_STATUSCODE_BADUNEXPECTEDERROR;
+            }
+        }
     }
 }
 
+void writeTest(long ConnectionHdl,u16 NodeHdlCount,long *NodeHdls,UA_Value *variables,u32 ErrorIDs[]){
+    UA_Client *c = (UA_Client*)ConnectionHdl;
+	int i;
+	UA_StatusCode retval=0;
+	if(NodeHdlCount>MAX_ELEMENTS_NODELIST){
+		retval=0xA0000002;
+		return retval;
+	}
+	//UA_NodeId NODEid= UA_NODEID_STRING(1, "A1.the anwser2");
+	//UA_Client_writeValueAttribute(c,NODEid,&in);
+	UA_WriteValue wValue[NodeHdlCount];
+	for(i=0;i<NodeHdlCount;i++){
+		UA_WriteValue_init(&wValue[i]);
+	 	wValue[i].nodeId = *(UA_NodeId*)NodeHdls[i];
+	 	//wValue[i].nodeId = NODEid;
+	 	wValue[i].attributeId = 1;
+	 	UA_Variant_setScalar(&wValue[i].value.value, (void*)(uintptr_t)variables[i].data, &UA_TYPES[variables[i].type-1]);
+	}
+	UA_WriteRequest wReq;
+	UA_WriteRequest_init(&wReq);
+	wReq.nodesToWrite = &wValue[0];
+	wReq.nodesToWriteSize = NodeHdlCount;
+
+	UA_WriteResponse wResp = UA_Client_Service_write(c, wReq);
+
+	retval = wResp.responseHeader.serviceResult;
+	if(retval==UA_STATUSCODE_GOOD){
+		if(wResp.resultsSize==NodeHdlCount){
+			for(i=0;i<NodeHdlCount;i++){
+				ErrorIDs[i]=wResp.results[i];
+			}
+		}else{
+			retval=UA_STATUSCODE_BADUNEXPECTEDERROR;
+		}
+	}
+	UA_WriteRequest_clear(&wResp);
+	return retval;
+}
+
 int main(int argc, char *argv[]) {
 	
     // long connecthdl;
@@ -251,8 +377,13 @@ int main(int argc, char *argv[]) {
     UA_BrowseResponse_clear(&bResp);
 
 	UA_NodeGetHandleList(hdl,4,nodes,nodeHdls,errors);
-
-	readTest(hdl,4,nodeHdls,errors);
+    UA_Value *variables = (UA_Value*)malloc(4 * sizeof(UA_Value));
+	readTest(hdl,4,nodeHdls,variables,errors);
+    for (int i = 0; i < 4; i++)
+    {
+        printf("%d\n",variables[i].type);
+    }
+    
 
     /* Clean up */
     UA_Client_disconnect(client);