diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..8c863ea
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,6 @@
+{
+    "files.associations": {
+        "map": "cpp",
+        "set": "cpp"
+    }
+}
\ No newline at end of file
diff --git a/c/.clang-format b/c/.clang-format
new file mode 100644
index 0000000..271b561
--- /dev/null
+++ b/c/.clang-format
@@ -0,0 +1,9 @@
+# Defines the Chromium style for automatic reformatting.
+# http://clang.llvm.org/docs/ClangFormatStyleOptions.html
+Language: Cpp
+BasedOnStyle: Google
+ColumnLimit: 120
+AlignConsecutiveMacros: true
+AlignConsecutiveDeclarations: true
+AlignConsecutiveAssignments:  true
+AlignOperands:               true
\ No newline at end of file
diff --git a/c/main.c b/c/main.c
index eeacb4e..575444f 100644
--- a/c/main.c
+++ b/c/main.c
@@ -1,68 +1,64 @@
+//
+// Created by zwsd
+//
+#include "MQTTClient.h"
 #include "stdlib.h"
 #include "string.h"
 #include "unistd.h"
-#include "MQTTClient.h"
 
-#define ADDRESS "mqtt://iot-06z00dtdbnukzsk.mqtt.iothub.aliyuncs.com:1883"
+#define ADDRESS  "mqtt://iot-06z00dtdbnukzsk.mqtt.iothub.aliyuncs.com:1883"
 #define USERNAME "mh_2&iekhmHv4wIC"
 #define PASSWORD "8491b7d3391d51f40120bb9d81a4b713c624ce7beb216b9d37076508ac6e7446"
 #define CLIENTID "iekhmHv4wIC.mh_2|securemode=2,signmethod=hmacsha256,timestamp=1680575050297|"
-#define QOS 0
-#define TOPIC "/sys/iekhmHv4wIC/mh_2/thing/event/property/post"
-#define TIMEOUT 10000L
+#define QOS      0
+#define TOPIC    "/sys/iekhmHv4wIC/mh_2/thing/event/property/post"
+#define TIMEOUT  10000L
 
-void publish(MQTTClient client, char *topic, char *payload)
-{
-    MQTTClient_message message = MQTTClient_message_initializer;
-    message.payload = payload;
-    message.payloadlen = strlen(payload);
-    message.qos = QOS;
-    message.retained = 0;
-    MQTTClient_deliveryToken token;
-    MQTTClient_publishMessage(client, topic, &message, &token);
-    MQTTClient_waitForCompletion(client, token, TIMEOUT);
-    printf("Send `%s` to topic `%s` \n", payload, TOPIC);
+void publish(MQTTClient client, char *topic, char *payload) {
+  MQTTClient_message message = MQTTClient_message_initializer;
+  message.payload            = payload;
+  message.payloadlen         = strlen(payload);
+  message.qos                = QOS;
+  message.retained           = 0;
+  MQTTClient_deliveryToken token;
+  MQTTClient_publishMessage(client, topic, &message, &token);
+  MQTTClient_waitForCompletion(client, token, TIMEOUT);
+  printf("Send `%s` to topic `%s` \n", payload, TOPIC);
 }
 
-int on_message(void *context, char *topicName, int topicLen, MQTTClient_message *message)
-{
-    char *payload = message->payload;
-    printf("Received `%s` from `%s` topic \n", payload, topicName);
-    MQTTClient_freeMessage(&message);
-    MQTTClient_free(topicName);
-    return 1;
+int on_message(void *context, char *topicName, int topicLen, MQTTClient_message *message) {
+  char *payload = message->payload;
+  printf("Received `%s` from `%s` topic \n", payload, topicName);
+  MQTTClient_freeMessage(&message);
+  MQTTClient_free(topicName);
+  return 1;
 }
 
-int main(int argc, char *argv[])
-{
-    int rc;
-    MQTTClient client;
+int main(int argc, char *argv[]) {
+  int        rc;
+  MQTTClient client;
 
-    MQTTClient_create(&client, ADDRESS, CLIENTID, 0, NULL);
-    MQTTClient_connectOptions conn_opts = MQTTClient_connectOptions_initializer;
-    conn_opts.username = USERNAME;
-    conn_opts.password = PASSWORD;
-    MQTTClient_setCallbacks(client, NULL, NULL, on_message, NULL);
-    if ((rc = MQTTClient_connect(client, &conn_opts)) != MQTTCLIENT_SUCCESS)
-    {
-        printf("Failed to connect, return code %d\n", rc);
-        exit(-1);
-    }
-    else
-    {
-        printf("Connected to MQTT Broker!\n");
-    }
-    // subscribe topic
-    MQTTClient_subscribe(client, TOPIC, QOS);
-    char payload[23];
-    for (int i = 0; i < 100; i += 1)
-    {
-        // publish message to broker
-        snprintf(payload, 23, "{\"RunningState\": \"%d\"}", i);
-        publish(client, TOPIC, payload);
-        sleep(1);
-    }
-    MQTTClient_disconnect(client, TIMEOUT);
-    MQTTClient_destroy(&client);
-    return rc;
+  MQTTClient_create(&client, ADDRESS, CLIENTID, 0, NULL);
+  MQTTClient_connectOptions conn_opts = MQTTClient_connectOptions_initializer;
+  conn_opts.username                  = USERNAME;
+  conn_opts.password                  = PASSWORD;
+  MQTTClient_setCallbacks(client, NULL, NULL, on_message, NULL);
+  if ((rc = MQTTClient_connect(client, &conn_opts)) != MQTTCLIENT_SUCCESS) {
+    printf("Failed to connect, return code %d\n", rc);
+    exit(-1);
+  } else {
+    printf("Connected to MQTT Broker!\n");
+  }
+  // subscribe topic
+  MQTTClient_subscribe(client, TOPIC, QOS);
+  char payload[23];
+  for (int i = 0; i < 100; i += 1) {
+    // publish message to broker
+    snprintf(payload, 23, "{\"RunningState\": \"%d\"}", i);
+    publish(client, TOPIC, payload);
+    sleep(1);
+  }
+  MQTTClient_disconnect(client, TIMEOUT);
+  MQTTClient_destroy(&client);
+  return rc;
 }