update zh-cn/device-dev/subsystems/subsys-sensor-guide.md.

Signed-off-by: Nduangavin123 <duanxichao@huawei.com>
Signed-off-by: Nduangavin123 <duanxichao@huawei.com>

zh-cn/device-dev/subsystems/subsys-sensor-guide.md

@@ -9,78 +9,78 @@
 1. 导入需要的包
 
   
-```
-#include "sensor_agent.h"
-#include "sensor_agent_type.h"
-```
+    ```c
+    #include "sensor_agent.h"
+    #include "sensor_agent_type.h"
+    ```
 
 2. 创建传感器回调函数
 
 
 
-```
-void SensorDataCallbackImpl(SensorEvent *event)
-{
-    if(event == NULL){
-        return;
+    ```c
+    void SensorDataCallbackImpl(SensorEvent *event)
+    {
+        if(event == NULL){
+            return;
+        }
+        float *sensorData=(float *)event->data;
     }
-    float *sensorData=(float *)event->data;
-}
-```
-
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
-> 回调函数的格式为RecordSensorCallback类型。
+    ```
+    
+    > ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
+    > 回调函数的格式为RecordSensorCallback类型。
 
 3. 获取设备支持sensor列表
 
 
 
-```
-SensorInfo *sensorInfo = (SensorInfo *)NULL;
-int32_t count = 0;
-int32_t ret = GetAllSensors(&sensorInfo, &count);
-```
+    ```c
+    SensorInfo *sensorInfo = (SensorInfo *)NULL;
+    int32_t count = 0;
+    int32_t ret = GetAllSensors(&sensorInfo, &count);
+    ```
 
 4. 创建的传感器用户
 
 
-
-```
-SensorUser sensorUser;
-sensorUser.callback = SensorDataCallbackImpl; //成员变量callback指向创建的回调方法
-```
+    
+    ```c
+    SensorUser sensorUser;
+    sensorUser.callback = SensorDataCallbackImpl; //成员变量callback指向创建的回调方法
+    ```
 
 5. 使能传感器
 
 
-
-```
-int32_t ret = ActivateSensor(0, &sensorUser);
-```
+    
+    ```c
+    int32_t ret = ActivateSensor(0, &sensorUser);
+    ```
 
 6. 订阅传感器数据
 
 
 
-```
-int32_t ret = SubscribeSensor(0, &sensorUser);
-```
-
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
-> 到这步就可以在实现的回调方法中获取到传感器数据。
+    ```c
+    int32_t ret = SubscribeSensor(0, &sensorUser);
+    ```
+    
+    > ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
+    > 到这步就可以在实现的回调方法中获取到传感器数据。
 
 7. 取消传感器数据订阅
 
 
 
-```
-int32_t ret = UnsubscribeSensor(0, &sensorUser);
-```
+    ```c
+    int32_t ret = UnsubscribeSensor(0, &sensorUser);
+    ```
 
 8. 去使能一个传感器
 
 
 
-```
-int32_t ret = DeactivateSensor(0, &sensorUser);
-```
+    ```c
+    int32_t ret = DeactivateSensor(0, &sensorUser);
+    ```