diff --git a/applications/app/BUILD.gn b/applications/app/BUILD.gn
index a3939441..6625758e 100644
--- a/applications/app/BUILD.gn
+++ b/applications/app/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW001_OS_helloworld/BUILD.gn b/applications/app/TW001_OS_helloworld/BUILD.gn
index 28d6cec7..6ce74a81 100644
--- a/applications/app/TW001_OS_helloworld/BUILD.gn
+++ b/applications/app/TW001_OS_helloworld/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW002_OS_thread/BUILD.gn b/applications/app/TW002_OS_thread/BUILD.gn
index 9b6e8ef3..1f33d615 100644
--- a/applications/app/TW002_OS_thread/BUILD.gn
+++ b/applications/app/TW002_OS_thread/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW003_OS_timer/BUILD.gn b/applications/app/TW003_OS_timer/BUILD.gn
index 33d5236a..36760174 100644
--- a/applications/app/TW003_OS_timer/BUILD.gn
+++ b/applications/app/TW003_OS_timer/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW004_OS_event/BUILD.gn b/applications/app/TW004_OS_event/BUILD.gn
index a3046e15..276b91c6 100644
--- a/applications/app/TW004_OS_event/BUILD.gn
+++ b/applications/app/TW004_OS_event/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW005_OS_mutex/BUILD.gn b/applications/app/TW005_OS_mutex/BUILD.gn
index ee3d2c9a..a295d0b9 100644
--- a/applications/app/TW005_OS_mutex/BUILD.gn
+++ b/applications/app/TW005_OS_mutex/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW006_OS_semp/BUILD.gn b/applications/app/TW006_OS_semp/BUILD.gn
index 3263bcb0..7d313205 100644
--- a/applications/app/TW006_OS_semp/BUILD.gn
+++ b/applications/app/TW006_OS_semp/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW007_OS_message/BUILD.gn b/applications/app/TW007_OS_message/BUILD.gn
index 8d19c159..5a6805aa 100644
--- a/applications/app/TW007_OS_message/BUILD.gn
+++ b/applications/app/TW007_OS_message/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW202_Module_traffic_light/BUILD.gn b/applications/app/TW202_Module_traffic_light/BUILD.gn
index 9358c88f..1b357907 100755
--- a/applications/app/TW202_Module_traffic_light/BUILD.gn
+++ b/applications/app/TW202_Module_traffic_light/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb  Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW202_Module_traffic_light/traffic_light_example.c b/applications/app/TW202_Module_traffic_light/traffic_light_example.c
index a100e409..153dfc13 100755
--- a/applications/app/TW202_Module_traffic_light/traffic_light_example.c
+++ b/applications/app/TW202_Module_traffic_light/traffic_light_example.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW204_Module_enviroment/BUILD.gn b/applications/app/TW204_Module_enviroment/BUILD.gn
index 676ad67a..2ce6bcd5 100644
--- a/applications/app/TW204_Module_enviroment/BUILD.gn
+++ b/applications/app/TW204_Module_enviroment/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW204_Module_enviroment/CGsensor.c b/applications/app/TW204_Module_enviroment/CGsensor.c
index 4ad885f7..f2aa17b8 100644
--- a/applications/app/TW204_Module_enviroment/CGsensor.c
+++ b/applications/app/TW204_Module_enviroment/CGsensor.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW204_Module_enviroment/THsensor.c b/applications/app/TW204_Module_enviroment/THsensor.c
index c64a407f..c0785ba6 100644
--- a/applications/app/TW204_Module_enviroment/THsensor.c
+++ b/applications/app/TW204_Module_enviroment/THsensor.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW204_Module_enviroment/buzze.c b/applications/app/TW204_Module_enviroment/buzze.c
index db73eb78..98c30ece 100644
--- a/applications/app/TW204_Module_enviroment/buzze.c
+++ b/applications/app/TW204_Module_enviroment/buzze.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW204_Module_enviroment/buzze.h b/applications/app/TW204_Module_enviroment/buzze.h
index b927f77c..56a2c7d3 100644
--- a/applications/app/TW204_Module_enviroment/buzze.h
+++ b/applications/app/TW204_Module_enviroment/buzze.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW204_Module_enviroment/sensor.h b/applications/app/TW204_Module_enviroment/sensor.h
index 359e9eaa..c035590d 100644
--- a/applications/app/TW204_Module_enviroment/sensor.h
+++ b/applications/app/TW204_Module_enviroment/sensor.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW205_Module_motor/BUILD.gn b/applications/app/TW205_Module_motor/BUILD.gn
index 21a2694a..92e9c3df 100644
--- a/applications/app/TW205_Module_motor/BUILD.gn
+++ b/applications/app/TW205_Module_motor/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW205_Module_motor/include/motor.h b/applications/app/TW205_Module_motor/include/motor.h
index be08f8f3..14ce1caa 100644
--- a/applications/app/TW205_Module_motor/include/motor.h
+++ b/applications/app/TW205_Module_motor/include/motor.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW205_Module_motor/motor_example.c b/applications/app/TW205_Module_motor/motor_example.c
index 802ec8b9..cb56fb61 100644
--- a/applications/app/TW205_Module_motor/motor_example.c
+++ b/applications/app/TW205_Module_motor/motor_example.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW205_Module_motor/src/motor.c b/applications/app/TW205_Module_motor/src/motor.c
index ce61099f..8e774764 100644
--- a/applications/app/TW205_Module_motor/src/motor.c
+++ b/applications/app/TW205_Module_motor/src/motor.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW207_Module_gyro/BUILD.gn b/applications/app/TW207_Module_gyro/BUILD.gn
index fcfa5703..1e7a223e 100755
--- a/applications/app/TW207_Module_gyro/BUILD.gn
+++ b/applications/app/TW207_Module_gyro/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW207_Module_gyro/gyro_example.c b/applications/app/TW207_Module_gyro/gyro_example.c
index 55d4f2f9..ac69a7c8 100755
--- a/applications/app/TW207_Module_gyro/gyro_example.c
+++ b/applications/app/TW207_Module_gyro/gyro_example.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.ltd.
+ * Copyright (c) 2021 Talkweb Co. Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -53,7 +53,7 @@ static void GryoExampleTask(void)
         }
         else
         {
-            printf("MPU6050 ReadAcc Gyro_Data.Accel[0] ==%d\t Gyro_Data.Accel[1] ==%d\t Gyro_Data.Accel[2] ==%d\n",Gyro_Data.Accel[0],Gyro_Data.Accel[1],Gyro_Data.Accel[2]);
+            printf("MPU6050 ReadAcc Gyro_Data.Accel[0] ==%d\t Gyro_Data.Accel[1] ==%d\t Gyro_Data.Accel[2] ==%d\n", Gyro_Data.Accel[0], Gyro_Data.Accel[1], Gyro_Data.Accel[2]);
             if (X + 100 < Gyro_Data.Accel[0] || X - 100 > Gyro_Data.Accel[0] || Y + 100 < Gyro_Data.Accel[1] || Y - 100 > Gyro_Data.Accel[1] || Z + 100 < Gyro_Data.Accel[2] || Z - 100 > Gyro_Data.Accel[2])
             {
                 printf("\r\n*******************led1 off led2 on******************\r\n");
@@ -69,7 +69,7 @@ static void GryoExampleTask(void)
             X = (int)Gyro_Data.Accel[0];
             Y = (int)Gyro_Data.Accel[1];
             Z = (int)Gyro_Data.Accel[2];
-            printf("MPU6050 ReadAcc X ==%d\t Y ==%d\t Z ==%d\n",X,Y,Z);
+            printf("MPU6050 ReadAcc X ==%d\t Y ==%d\t Z ==%d\n", X, Y, Z);
         }
         usleep(1000000);
     }
@@ -94,4 +94,3 @@ static void GyroExampleEntry(void)
 }
 
 APP_FEATURE_INIT(GyroExampleEntry);
-
diff --git a/applications/app/TW207_Module_gyro/include/gyro.h b/applications/app/TW207_Module_gyro/include/gyro.h
index 2ab4bcb9..1c26d2e0 100755
--- a/applications/app/TW207_Module_gyro/include/gyro.h
+++ b/applications/app/TW207_Module_gyro/include/gyro.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW207_Module_gyro/src/gyro.c b/applications/app/TW207_Module_gyro/src/gyro.c
index d3af7d69..c88972a4 100755
--- a/applications/app/TW207_Module_gyro/src/gyro.c
+++ b/applications/app/TW207_Module_gyro/src/gyro.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.ltd.
+ * Copyright (c) 2021 Talkweb Co. Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW301_Network_wifista/wifi_connect_demo.c b/applications/app/TW301_Network_wifista/wifi_connect_demo.c
index e7ed523a..96e08dbf 100644
--- a/applications/app/TW301_Network_wifista/wifi_connect_demo.c
+++ b/applications/app/TW301_Network_wifista/wifi_connect_demo.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW301_Network_wifista/wifi_connect_demo.h b/applications/app/TW301_Network_wifista/wifi_connect_demo.h
index c5ea21fd..6536db77 100644
--- a/applications/app/TW301_Network_wifista/wifi_connect_demo.h
+++ b/applications/app/TW301_Network_wifista/wifi_connect_demo.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW302_Network_wifiap/wifi_ap_example.c b/applications/app/TW302_Network_wifiap/wifi_ap_example.c
index 950fb38b..3cf8a011 100644
--- a/applications/app/TW302_Network_wifiap/wifi_ap_example.c
+++ b/applications/app/TW302_Network_wifiap/wifi_ap_example.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW302_Network_wifiap/wifi_ap_service.c b/applications/app/TW302_Network_wifiap/wifi_ap_service.c
index 88107f54..f1c1a922 100644
--- a/applications/app/TW302_Network_wifiap/wifi_ap_service.c
+++ b/applications/app/TW302_Network_wifiap/wifi_ap_service.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW302_Network_wifiap/wifi_ap_service.h b/applications/app/TW302_Network_wifiap/wifi_ap_service.h
index a38dd2c4..a4a46e17 100644
--- a/applications/app/TW302_Network_wifiap/wifi_ap_service.h
+++ b/applications/app/TW302_Network_wifiap/wifi_ap_service.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW303_Network_mqttclient/BUILD.gn b/applications/app/TW303_Network_mqttclient/BUILD.gn
index 05592b62..5d887046 100644
--- a/applications/app/TW303_Network_mqttclient/BUILD.gn
+++ b/applications/app/TW303_Network_mqttclient/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW303_Network_mqttclient/include/wifi_connect.h b/applications/app/TW303_Network_mqttclient/include/wifi_connect.h
index da4da62b..c6bb2b6d 100644
--- a/applications/app/TW303_Network_mqttclient/include/wifi_connect.h
+++ b/applications/app/TW303_Network_mqttclient/include/wifi_connect.h
@@ -1,5 +1,5 @@
 /* 
-* Copyright (c) 2021 Talkweb Co.,ltd.
+* Copyright (c) 2021 Talkweb Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
diff --git a/applications/app/TW303_Network_mqttclient/src/wifi_connect.c b/applications/app/TW303_Network_mqttclient/src/wifi_connect.c
index 3862415c..59cb9519 100644
--- a/applications/app/TW303_Network_mqttclient/src/wifi_connect.c
+++ b/applications/app/TW303_Network_mqttclient/src/wifi_connect.c
@@ -1,12 +1,25 @@
+/* 
+* Copyright (c) 2021 Talkweb Co., Ltd.
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License. 
+*/
+
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
 
-// #include "hiview_log.h"
 #include "ohos_init.h"
 #include "cmsis_os2.h"
 
-
 #include "lwip/netif.h"
 #include "lwip/netifapi.h"
 #include "lwip/ip4_addr.h"
@@ -14,7 +27,6 @@
 
 #include "wifi_device.h"
 
-
 #define DEF_TIMEOUT 15
 #define ONE_SECOND 1
 
@@ -33,9 +45,8 @@ WifiEvent g_wifiEventHandler = {0};
 int sock_fd;
 int addr_length;
 
-#define STD_TIMEZONE_OFFSET +8                                     /* 设置中国 */
-const int timeZone = 8;   
-
+#define STD_TIMEZONE_OFFSET +8 /* 设置中国 */
+const int timeZone = 8;
 
 static void WiFiInit(void);
 static void WaitSacnResult(void);
@@ -154,14 +165,13 @@ int WifiConnect(const char *ssid, const char *psk)
     }
     printf("********************\r\n");
 
-
     //插件指定的wifi是否存在
-    for(uint8_t i = 0; i < ssid_count; i++)
+    for (uint8_t i = 0; i < ssid_count; i++)
     {
         if (strcmp(ssid, wifi_info[i].ssid) == 0)
         {
             int result;
-            printf("Select:%3d wireless, Waiting...\r\n", i+1);
+            printf("Select:%3d wireless, Waiting...\r\n", i + 1);
             //拷贝要连接的热点信息
             strcpy(select_ap_config.ssid, wifi_info[i].ssid);
             strcpy(select_ap_config.preSharedKey, psk);
@@ -178,27 +188,25 @@ int WifiConnect(const char *ssid, const char *psk)
             }
         }
 
-         if(i == ssid_count-1)
+        if (i == ssid_count - 1)
         {
             printf("ERROR: No wifi as expected\r\n");
-            while(1) osDelay(100);
+            while (1)
+                osDelay(100);
         }
     }
 
-
-
-     //启动DHCP
+    //启动DHCP
     if (g_lwip_netif)
     {
         dhcp_start(g_lwip_netif);
         printf("begain to dhcp");
     }
 
-
     //等待DHCP
-    for(;;)
+    for (;;)
     {
-        if(dhcp_is_bound(g_lwip_netif) == ERR_OK)
+        if (dhcp_is_bound(g_lwip_netif) == ERR_OK)
         {
             printf("<-- DHCP state:OK -->\r\n");
 
@@ -212,10 +220,11 @@ int WifiConnect(const char *ssid, const char *psk)
     }
 
     osDelay(100);
-    if (wifi_info != NULL) {
+    if (wifi_info != NULL)
+    {
         free(wifi_info);
-		wifi_info = NULL;
-	}
+        wifi_info = NULL;
+    }
     return 0;
 }
 
@@ -275,4 +284,3 @@ static void WaitSacnResult(void)
         printf("WaitSacnResult:timeout!\n");
     }
 }
-
diff --git a/applications/app/TW402_APP_oled_u8g2/BUILD.gn b/applications/app/TW402_APP_oled_u8g2/BUILD.gn
index cdda17ff..3a4ca2bd 100644
--- a/applications/app/TW402_APP_oled_u8g2/BUILD.gn
+++ b/applications/app/TW402_APP_oled_u8g2/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Talkweb Co.,ltd.
+# Copyright (c) 2021 Talkweb Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/applications/app/TW402_APP_oled_u8g2/include/boot_animation.h b/applications/app/TW402_APP_oled_u8g2/include/boot_animation.h
index 6ff3096f..28dd14db 100644
--- a/applications/app/TW402_APP_oled_u8g2/include/boot_animation.h
+++ b/applications/app/TW402_APP_oled_u8g2/include/boot_animation.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW402_APP_oled_u8g2/include/oled_u8g2.h b/applications/app/TW402_APP_oled_u8g2/include/oled_u8g2.h
index 6e19e420..dff1a896 100644
--- a/applications/app/TW402_APP_oled_u8g2/include/oled_u8g2.h
+++ b/applications/app/TW402_APP_oled_u8g2/include/oled_u8g2.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW402_APP_oled_u8g2/oled_u8g2_example.c b/applications/app/TW402_APP_oled_u8g2/oled_u8g2_example.c
index a29c0e44..9b7cae1a 100644
--- a/applications/app/TW402_APP_oled_u8g2/oled_u8g2_example.c
+++ b/applications/app/TW402_APP_oled_u8g2/oled_u8g2_example.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/applications/app/TW402_APP_oled_u8g2/src/oled_u8g2.c b/applications/app/TW402_APP_oled_u8g2/src/oled_u8g2.c
index 19e8b0eb..23f3182e 100644
--- a/applications/app/TW402_APP_oled_u8g2/src/oled_u8g2.c
+++ b/applications/app/TW402_APP_oled_u8g2/src/oled_u8g2.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Talkweb Co.,ltd.
+ * Copyright (c) 2021 Talkweb Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at