diff --git a/myClient.c b/myClient.c
index 4430efa..0ea2cdf 100644
--- a/myClient.c
+++ b/myClient.c
@@ -3,13 +3,10 @@
 
 UA_Client *client;
 
-u32 CA_Connect(long *ConnectionHdl,TIME timeout){
+u32 Connect(long *ConnectionHdl){
 	UA_Client *c = UA_Client_new();
 	UA_StatusCode flag = UA_ClientConfig_setDefault(UA_Client_getConfig(c));
 	UA_ClientConfig *config=UA_Client_getConfig(c);
-
-	config->securityMode=1;
-    config->timeout = timeout;
 	if (flag == UA_STATUSCODE_GOOD) {
 		flag=UA_Client_connect(c, "opc.tcp://localhost:4840");
 
@@ -25,12 +22,43 @@ u32 CA_Connect(long *ConnectionHdl,TIME timeout){
 	return flag;
 }
 
+u32 NamespaceGetIndexList(long ConnectionHdl,u16 NamespaceUrisCount,STRING *NamespaceUris,u16 *NamespaceIndexes){
+	UA_Client *c = (UA_Client*)ConnectionHdl;
+	int i;
+	u32 retval=0;
+	if(NamespaceUrisCount>MAX_ELEMENTS_NAMESPACES){
+		retval=0xA0000002;
+		return retval;
+	}
+	for(i=0;i<NamespaceUrisCount;i++){
+		UA_String NamespaceUri;
+		NamespaceUri.length = NamespaceUris[i].length;
+		NamespaceUri.data = NamespaceUris[i].data;
+		retval=UA_Client_NamespaceGetIndex(c,&NamespaceUri,&NamespaceIndexes[i]);
+		if (retval!= UA_STATUSCODE_GOOD) {
+            printf("Failed to get namespace index for URI %.*s\n", (int)NamespaceUri.length, NamespaceUri.data);
+            break; // 出现错误时立即退出循环
+        }
+	}
+	return retval;
+}
+
 int main(int argc, char *argv[]) {
-    long *hdl;
-    TIME timeout = 200000;
-    CA_Connect(*hdl,timeout);
-    while(1)
-    {
-        
+	
+    long connectionHdl;
+	Connect(&connectionHdl);
+	STRING str[3];
+	str[0].data = (UA_Byte*)"http://opcfoundation.org/UA/";
+	str[0].length = 28;
+	str[1].data = (UA_Byte*)"urn:open62541.server.application";
+	str[1].length = 32;
+	str[2].data = (UA_Byte*)"http://example.com/MyNamespace";
+	str[2].length = 30;
+	u16 num[3] = {0};
+	NamespaceGetIndexList(connectionHdl,3,str,num);
+	printf("Namespace Indexes:\n");
+    for (int i = 0; i < 3; i++) {
+        printf("URI %d: Index = %u\n", i, num[i]);
     }
+	
 }
\ No newline at end of file
diff --git a/myServer.c b/myServer.c
index 7f931f8..9770421 100644
--- a/myServer.c
+++ b/myServer.c
@@ -49,6 +49,12 @@ helloMethodCallback(UA_Server *server,
 
 static void manuallyDefinePump(UA_Server *server)
 {
+    //Add NameSpace
+
+    const char *namespaceUri = "http://example.com/MyNamespace";
+    UA_UInt16 namespaceIndex = UA_Server_addNamespace(server, namespaceUri);
+
+
     // 声明并获取服务器分配的节点 ID
     UA_NodeId pumpId;
 
@@ -58,7 +64,7 @@ static void manuallyDefinePump(UA_Server *server)
 
     // 添加泵对象节点
     UA_Server_addObjectNode(server,
-                            UA_NODEID_NULL,
+                            UA_NODEID_NUMERIC(namespaceIndex, 1),
                             UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
                             UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES),
                             UA_QUALIFIEDNAME(1, "Pump (Manual)"),
diff --git a/opcua_client b/opcua_client
index ebfdf3b..b348645 100755
Binary files a/opcua_client and b/opcua_client differ
diff --git a/opcua_server b/opcua_server
index 000d1c7..e70f4c4 100755
Binary files a/opcua_server and b/opcua_server differ