diff --git a/zh-cn/application-dev/reference/apis/js-apis-battery-info.md b/zh-cn/application-dev/reference/apis/js-apis-battery-info.md
index d627fed783604e6d04c6568c79038137e1ebb465..897ae78e35702c06a9bd647cf57b51e0774a6a9a 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-battery-info.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-battery-info.md
@@ -8,7 +8,7 @@
 
 ## 导入模块
 
-```
+```js
 import batteryInfo from '@ohos.batteryInfo';
 ```
 
@@ -32,7 +32,7 @@ SystemCapability.PowerManager.BatteryManager.Core
 | isBatteryPresent<sup>7+</sup> | boolean                                  | 是    | 否    | 表示当前设备是否支持电池或者电池是否在位。 |
 
 - 示例：
-  ```
+  ```js
   import batteryInfo from '@ohos.batteryInfo';
   var batterySoc = batteryInfo.batterySOC;
   ```
diff --git a/zh-cn/application-dev/reference/apis/js-apis-brightness.md b/zh-cn/application-dev/reference/apis/js-apis-brightness.md
index bf0de9a4bbfa53cef3559bc455c1a4c417e3ebe5..17676f2c3a129536fcce34ca4e5cb418676d736a 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-brightness.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-brightness.md
@@ -8,7 +8,7 @@
 
 ## 导入模块
 
-```
+```js
 import brightness from '@ohos.brightness';
 ```
 
@@ -30,6 +30,6 @@ setValue(value: number): void
 
 **示例：**
 
-```
+```js
 brightness.setValue(128);
 ```
diff --git a/zh-cn/application-dev/reference/apis/js-apis-power.md b/zh-cn/application-dev/reference/apis/js-apis-power.md
index d1223b75c2bd846a0200af2b2531feba746e2b85..33c658da30403564e62b2a2c111fe03256477114 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-power.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-power.md
@@ -8,7 +8,7 @@
 
 ## 导入模块
 
-```
+```js
 import power from '@ohos.power';
 ```
 
@@ -35,7 +35,7 @@ shutdownDevice(reason: string): void
 
 **示例：**
 
-```
+```js
 power.shutdownDevice("shutdown_test");
 console.info('power_shutdown_device_test success')
 ```
@@ -57,7 +57,7 @@ rebootDevice(reason: string): void
 
 **示例：**
 
-```
+```js
 power.rebootDevice("reboot_test");
 console.info('power_reboot_device_test success')
 ```
@@ -77,7 +77,7 @@ isScreenOn(callback: AsyncCallback&lt;boolean&gt;): void
 
 **示例：**
 
-```
+```js
 power.isScreenOn((error, screenOn) => {
     if (typeof error === "undefined") {
         console.info('screenOn status is ' + screenOn);
@@ -101,7 +101,7 @@ isScreenOn(): Promise&lt;boolean&gt;
 
 **示例：**
 
-```
+```js
 power.isScreenOn()
 .then(screenOn => {
     console.info('screenOn status is ' + screenOn);
diff --git a/zh-cn/application-dev/reference/apis/js-apis-screen-lock.md b/zh-cn/application-dev/reference/apis/js-apis-screen-lock.md
index ccb5244b06308dcc0b51ce1c73c0c99a79ccf6d6..09b8a7a4c4e1e30ce097702132ea8f02e94227fa 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-screen-lock.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-screen-lock.md
@@ -7,7 +7,7 @@
 ## 导入模块
 
 
-```
+```js
 import screenlock from '@ohos.screenLock';
 ```
 
@@ -27,7 +27,7 @@ isScreenLocked(callback: AsyncCallback&lt;boolean&gt;): void
 
 - 示例：
   
-  ```
+  ```js
   screenlock.isScreenLocked((err, data)=>{      
      if (err) {
           console.error('isScreenLocked callback error -> ${JSON.stringify(err)}');
@@ -53,7 +53,7 @@ isScreenLocked(): Promise&lt;boolean&gt;
 
 - 示例：
 
-  ```
+  ```js
   screenlock.isScreenLocked().then((data) => {
       console.log('isScreenLocked success: data -> ${JSON.stringify(data)}');
   }).catch((err) => {
@@ -80,7 +80,7 @@ isSecureMode(callback: AsyncCallback&lt;boolean&gt;): void
 
 - 示例：
   
-  ```
+  ```js
   screenlock.isSecureMode((err, data)=>{      
      if (err) {
           console.error('isSecureMode callback error -> ${JSON.stringify(err)}');
@@ -106,7 +106,7 @@ isSecureMode(): Promise&lt;boolean&gt;
 
 - 示例：
 
-  ```
+  ```js
   screenlock.isSecureMode().then((data) => {
       console.log('isSecureMode success: data->${JSON.stringify(data)}');
   }).catch((err) => {
@@ -133,7 +133,7 @@ unlockScreen(callback: AsyncCallback&lt;void&gt;): void
 
 - 示例：
   
-  ```
+  ```js
   screenlock.unlockScreen((err)=>{      
      if (err) {
           console.error('unlockScreen callback error -> ${JSON.stringify(err)}');
@@ -159,7 +159,7 @@ unlockScreen(): Promise&lt;void&gt;
 
 - 示例：
   
-  ```
+  ```js
   screenlock.unlockScreen().then(() => {
       console.log('unlockScreen success');
   }).catch((err) => {
diff --git a/zh-cn/application-dev/reference/apis/js-apis-system-battery.md b/zh-cn/application-dev/reference/apis/js-apis-system-battery.md
index 2f9e575a01de78fc69b6371162bb602c0a68db39..3a52e071218063300184d674c36bafbced129641 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-system-battery.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-system-battery.md
@@ -9,7 +9,7 @@
 ## 导入模块
 
 
-```
+```js
 import battery from '@system.battery';
 ```
 
@@ -39,7 +39,7 @@ success返回值：
 
 **示例：**
 
-```
+```js
 export default {    
   getStatus() {       
     battery.getStatus({           
diff --git a/zh-cn/application-dev/reference/apis/js-apis-system-brightness.md b/zh-cn/application-dev/reference/apis/js-apis-system-brightness.md
index b8e3a07ba1cfbd0ba2e65854bb2db8acb32c0ff1..aa52115fe4f88eea6c57b03ede1731d73c11cefd 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-system-brightness.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-system-brightness.md
@@ -9,7 +9,7 @@
 ## 导入模块
 
 
-```
+```js
 import brightness from '@system.brightness';
 ```
 
@@ -37,7 +37,7 @@ success返回值：
 
 **示例：**
 
-  ```
+  ```js
   export default {    
     getValue() {        
       brightness.getValue({            
@@ -71,7 +71,7 @@ setValue(Object): void
 
 **示例：**
 
-  ```
+  ```js
   export default {    
     setValue() {        
       brightness.setValue({            
@@ -111,7 +111,7 @@ getMode(Object): void
 
 **示例：**
 
-  ```
+  ```js
   export default {    
     getMode() {        
       brightness.getMode({            
@@ -145,7 +145,7 @@ setMode(Object): void
 
 **示例：**
 
-  ```
+  ```js
   export default {    
     setMode() {        
       brightness.setMode({            
@@ -180,7 +180,7 @@ setKeepScreenOn(Object): void
 
 **示例：**
 
-  ```
+  ```js
   export default {    
     setKeepScreenOn() {        
       brightness.setKeepScreenOn({            
diff --git a/zh-cn/application-dev/reference/apis/js-apis-thermal.md b/zh-cn/application-dev/reference/apis/js-apis-thermal.md
index a351b62f9031399d8851fa2c93e081fcd7e08869..b79cd24da0151f0a065005b7b2660fad7eb27603 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-thermal.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-thermal.md
@@ -8,7 +8,7 @@
 
 ## 导入模块
 
-```
+```js
 import thermal from '@ohos.thermal';
 ```
 
@@ -46,7 +46,7 @@ subscribeThermalLevel(callback: AsyncCallback&lt;ThermalLevel&gt;): void
 
 **示例：**
 
-```
+```js
 var lev = 0;
 thermal.subscribeThermalLevel((lev) => {
     console.info("Thermal level is: " + lev);
@@ -69,7 +69,7 @@ unsubscribeThermalLevel(callback?: AsyncCallback\<void>): void
 
 **示例：**
 
-```
+```js
 thermal.unsubscribeThermalLevel(() => {
     console.info("Unsubscribe completed.");
 });
@@ -91,7 +91,7 @@ getThermalLevel(): ThermalLevel
 
 **示例：**
 
-```
+```js
 var lev = thermal.getThermalLevel();
 console.info("Thermal level is: " + lev);
 ```