diff --git a/network-comm/nic/wifi/WLAN.py b/network-comm/nic/wifi/WLAN.py
index 3a8a489..09ca185 100644
--- a/network-comm/nic/wifi/WLAN.py
+++ b/network-comm/nic/wifi/WLAN.py
@@ -58,7 +58,7 @@ def __init__(self, uart=UART.UART2, mode=STA, callback=None,baudrate=921600,data
         self.__value = None
         self.__wait_resp = 0
         self.__send_time = 0
-		self.__baudrate = baudrate
+        self.__baudrate = baudrate
         self.__data_bit = data_bit
         self.__parity_bit = parity_bit
         self.__flow_ctrl = flow_ctrl
@@ -213,7 +213,7 @@ def set_default_NIC(self, ip_str):
     def stop(self):
         _thread.stop_thread(self.__threadid)
         slip.destroy()
-		self.__sock.close()#释放socket
+        self.__sock.close()#释放socket
         return RET_CODE.RET_SUCCESS_CODE
 
 	# 封装tlv数据包
@@ -258,7 +258,7 @@ def __Socket_UDP(self, head, content):
         return data
     
     def __def__(self):
-		self.stop()
+        self.stop()
    
 	# socket通信(UDP)模块
     def __Socket_Thread(self):