diff --git a/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePath.md b/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePath.md
index c447a0fa845477e443aed5651d3a54dc8422011a..8af52f018b44ff4242650ef74082bf9976f9af2b 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePath.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePath.md
@@ -44,5 +44,7 @@ constructor(durationTime: number);
 **示例：**
 
 ```ts
+import GesturePath from '@ohos.accessibility.GesturePath';
+
 let gesturePath = new GesturePath.GesturePath(20);
 ```
diff --git a/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePoint.md b/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePoint.md
index ceafa7ceb09a73285b91e751bb8f1353f0e9c8c5..0c4bf4e52f488045aa6bf7e7cce47269a1b2736d 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePoint.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-accessibility-GesturePoint.md
@@ -45,5 +45,7 @@ constructor(positionX: number, positionY: number);
 **示例：**
 
 ```ts
+import GesturePoint from '@ohos.accessibility.GesturePoint';
+
 let gesturePoint = new GesturePoint.GesturePoint(1, 2);
 ```
diff --git a/zh-cn/application-dev/reference/apis/js-apis-accessibility-config.md b/zh-cn/application-dev/reference/apis/js-apis-accessibility-config.md
index 2b196175c3675f0b5c6191e247ac480e925dd607..20649e2a0c61b395b6205a256f82ee8a33cb2a1c 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-accessibility-config.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-accessibility-config.md
@@ -68,12 +68,14 @@ enableAbility(name: string, capability: Array<accessibility.Capability>):
 
 ```ts
 import accessibility from '@ohos.accessibility';
-let name = 'com.ohos.example/axExtension';
+import config from '@ohos.accessibility.config';
+
+let name: string = 'com.ohos.example/axExtension';
 let capability : accessibility.Capability[] = ['retrieve'];
 try {
     config.enableAbility(name, capability).then(() => {
       console.info('enable ability succeed');
-    }).catch((err) => {
+    }).catch((err: object) => {
       console.error('failed to enable ability, because ' + JSON.stringify(err));
     });
 } catch (exception) {
@@ -110,10 +112,13 @@ enableAbility(name: string, capability: Array<accessibility.Capability>, c
 
 ```ts
 import accessibility from '@ohos.accessibility';
-let name = 'com.ohos.example/axExtension';
-let capability : accessibility.Capability[] = ['retrieve'];
+import config from '@ohos.accessibility.config';
+import { BusinessError } from '@ohos.base';
+
+let name: string = 'com.ohos.example/axExtension';
+let capability: accessibility.Capability[] = ['retrieve'];
 try {
-    config.enableAbility(name, capability, (err) => {
+    config.enableAbility(name, capability, (err: BusinessError<void>) => {
         if (err) {
             console.error('failed to enable ability, because ' + JSON.stringify(err));
             return;
@@ -156,11 +161,14 @@ disableAbility(name: string): Promise&lt;void&gt;;
 **示例：**
 
 ```ts
-let name = 'com.ohos.example/axExtension';
+import accessibility from '@ohos.accessibility';
+import config from '@ohos.accessibility.config';
+
+let name: string = 'com.ohos.example/axExtension';
 try {
     config.disableAbility(name).then(() => {
       console.info('disable ability succeed');
-    }).catch((err) => {
+    }).catch((err: object) => {
       console.error('failed to disable ability, because ' + JSON.stringify(err));
     });
 } catch (exception) {
@@ -194,9 +202,13 @@ disableAbility(name: string, callback: AsyncCallback&lt;void&gt;): void;
 **示例：**
 
 ```ts
-let name = 'com.ohos.example/axExtension';
+import accessibility from '@ohos.accessibility';
+import config from '@ohos.accessibility.config';
+import { BusinessError } from '@ohos.base';
+
+let name: string = 'com.ohos.example/axExtension';
 try {
-    config.disableAbility(name, (err, data) => {
+    config.disableAbility(name, (err: BusinessError<void>) => {
         if (err) {
             console.error('failed to enable ability, because ' + JSON.stringify(err));
             return;
@@ -226,6 +238,8 @@ on(type: 'enabledAccessibilityExtensionListChange', callback: Callback&lt;void&g
 **示例：**
 
 ```ts
+import config from '@ohos.accessibility.config';
+
 try {
     config.on('enabledAccessibilityExtensionListChange', () => {
         console.info('subscribe enabled accessibility extension list change state success');
@@ -254,6 +268,8 @@ off(type: 'enabledAccessibilityExtensionListChange', callback?: Callback&lt;void
 **示例：**
 
 ```ts
+import config from '@ohos.accessibility.config';
+
 try {
     config.off('enabledAccessibilityExtensionListChange', () => {
         console.info('Unsubscribe enabled accessibility extension list change state success');
@@ -291,11 +307,13 @@ set(value: T): Promise&lt;void&gt;;
 **示例：**
 
 ```ts
-let value = true;
+import config from '@ohos.accessibility.config';
+
+let value: boolean = true;
 try {
     config.highContrastText.set(value).then(() => {
         console.info('set highContrastText succeed');
-    }).catch((err) => {
+    }).catch((err: object) => {
         console.error('failed to set highContrastText, because ' + JSON.stringify(err));
     });
 } catch (exception) {
@@ -321,9 +339,12 @@ set(value: T, callback: AsyncCallback&lt;void&gt;): void;
 **示例：**
 
 ```ts
-let value = true;
+import config from '@ohos.accessibility.config';
+import { BusinessError } from '@ohos.base';
+
+let value: boolean = true;
 try {
-    config.highContrastText.set(value, (err, data) => {
+    config.highContrastText.set(value, (err: BusinessError<void>) => {
         if (err) {
             console.error('failed to set highContrastText, because ' + JSON.stringify(err));
             return;
@@ -352,11 +373,14 @@ get(): Promise&lt;T&gt;;
 **示例：**
 
 ```ts
-let value;
-config.highContrastText.get().then((data) => {
+import config from '@ohos.accessibility.config';
+import { BusinessError } from '@ohos.base';
+
+let value: boolean;
+config.highContrastText.get().then((data: boolean) => {
     value = data;
     console.info('get highContrastText success');
-}).catch((err) => {
+}).catch((err: object) => {
     console.error('failed to get highContrastText, because ' + JSON.stringify(err));
 });
 ```
@@ -378,8 +402,11 @@ get(callback: AsyncCallback&lt;T&gt;): void;
 **示例：**
 
 ```ts
-let value;
-config.highContrastText.get((err, data) => {
+import config from '@ohos.accessibility.config';
+import { BusinessError } from '@ohos.base';
+
+let value: boolean;
+config.highContrastText.get((err: BusinessError<void>, data: boolean) => {
     if (err) {
         console.error('failed to get highContrastText, because ' + JSON.stringify(err));
         return;
@@ -406,8 +433,10 @@ on(callback: Callback&lt;T&gt;): void;
 **示例：**
 
 ```ts
+import config from '@ohos.accessibility.config';
+
 try {
-    config.highContrastText.on((data) => {
+    config.highContrastText.on((data: boolean) => {
         console.info('subscribe highContrastText success, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
@@ -432,7 +461,9 @@ off(callback?: Callback&lt;T&gt;): void;
 **示例：**
 
 ```ts
-config.highContrastText.off((data) => {
+import config from '@ohos.accessibility.config';
+
+config.highContrastText.off((data: boolean) => {
     console.info('Unsubscribe highContrastText success, result: ' + JSON.stringify(data));
 });
 ```
diff --git a/zh-cn/application-dev/reference/apis/js-apis-accessibility.md b/zh-cn/application-dev/reference/apis/js-apis-accessibility.md
index ad762b7c34524c460aea7342f4b11d533fb4317e..12665fee0edbd6fa00dfeafb7d47a3fb7d8fc01f 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-accessibility.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-accessibility.md
@@ -174,9 +174,11 @@ on(type: 'enableChange', callback: Callback&lt;boolean&gt;): void;
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.on('enableChange', (data) => {
+    captionsManager.on('enableChange', (data: boolean) => {
         console.info('subscribe caption manager enable state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
@@ -202,10 +204,12 @@ on(type: 'styleChange', callback: Callback&lt;CaptionsStyle&gt;): void;
 **示例：**
 
 ```ts
-let captionStyle;
+import accessibility from '@ohos.accessibility';
+
+let captionStyle: accessibility.CaptionsStyle;
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.on('styleChange', (data) => {
+    captionsManager.on('styleChange', (data: accessibility.CaptionsStyle) => {
         captionStyle = data;
         console.info('subscribe caption manager style state change, result: ' + JSON.stringify(data));
     });
@@ -232,9 +236,11 @@ off(type: 'enableChange', callback?: Callback&lt;boolean&gt;): void;
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.off('enableChange', (data) => {
+    captionsManager.off('enableChange', (data: boolean) => {
         console.info('Unsubscribe caption manager enable state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
@@ -260,10 +266,12 @@ off(type: 'styleChange', callback?: Callback&lt;CaptionsStyle&gt;): void;
 **示例：**
 
 ```ts
-let captionStyle;
+import accessibility from '@ohos.accessibility';
+
+let captionStyle: accessibility.CaptionsStyle;
 let captionsManager = accessibility.getCaptionsManager();
 try {
-    captionsManager.off('styleChange', (data) => {
+    captionsManager.off('styleChange', (data: accessibility.CaptionsStyle) => {
         captionStyle = data;
         console.info('Unsubscribe caption manager style state change, result: ' + JSON.stringify(data));
     });
@@ -314,10 +322,12 @@ constructor(jsonObject)
 **示例：**
 
   ```ts
-  let eventInfo = new accessibility.EventInfo({
-    'type':'click',
-    'bundleName':'com.example.MyApplication',
-    'triggerAction':'click'
+  import accessibility from '@ohos.accessibility';
+
+  let eventInfo: accessibility.EventInfo = ({
+    type: 'click',
+    bundleName: 'com.example.MyApplication',
+    triggerAction: 'click'
   });
   ```
 
@@ -398,24 +408,28 @@ getAbilityLists(abilityType: AbilityType, stateType: AbilityState): Promise&lt;A
 **示例：**
 
 ```ts
-let abilityType = 'spoken';
-let abilityState = 'enable';
-let abilityList: accessibility.AccessibilityInfo[];
+import accessibility from '@ohos.accessibility';
+
+let abilityType : accessibility.AbilityType = 'spoken';
+let abilityState : accessibility.AbilityState = 'enable';
+let abilityList: accessibility.AccessibilityAbilityInfo[];
 try {
-    accessibility.getAbilityLists(abilityType, abilityState).then((data) => {
-        for (let item of data) {
-            console.info(item.id);
-            console.info(item.name);
-            console.info(item.description);
-            console.info(item.bundleName);
-            extensionList.push(item);
-        }
-        console.info('get accessibility extension list success');
-    }).catch((err) => {
-        console.error('failed to get accessibility extension list because ' + JSON.stringify(err));
+  accessibility.getAbilityLists(abilityType, abilityState)
+    .then((data: accessibility.AccessibilityAbilityInfo[]) => {
+      for (let item of data) {
+        console.info(item.id);
+        console.info(item.name);
+        console.info(item.description);
+        console.info(item.bundleName);
+        abilityList.push(item);
+      }
+      console.info('get accessibility extension list success');
+    })
+    .catch((err: object) => {
+      console.error('failed to get accessibility extension list because ' + JSON.stringify(err));
     });
 } catch (exception) {
-    console.error('failed to get accessibility extension list because ' + JSON.stringify(exception));
+  console.error('failed to get accessibility extension list because ' + JSON.stringify(exception));
 }
 ```
 
@@ -443,11 +457,15 @@ getAbilityLists(abilityType: AbilityType, stateType: AbilityState,callback: Asyn
 **示例：**
 
 ```ts
-let abilityType = 'spoken';
-let abilityState = 'enable';
+import accessibility from '@ohos.accessibility';
+import { BusinessError } from '@ohos.base';
+
+let abilityType : accessibility.AbilityType = 'spoken';
+let abilityState : accessibility.AbilityState = 'enable';
 let abilityList: accessibility.AccessibilityInfo[];
 try {
-    accessibility.getAbilityLists(abilityType, abilityState, (err, data) => {
+    accessibility.getAbilityLists(abilityType, abilityState, 
+    (err: BusinessError<void>, data: accessibility.AccessibilityAbilityInfo[]) => {
         if (err) {
             console.error('failed to get accessibility extension list because ' + JSON.stringify(err));
             return;
@@ -460,9 +478,7 @@ try {
             abilityList.push(item);
         }
         console.info('get accessibility extension list success');
-    }).catch((err) => {
-        console.error('failed to get accessibility extension list because ' + JSON.stringify(err));
-    });
+    })
 } catch (exception) {
     console.error('failed to get accessibility extension list because ' + JSON.stringify(exception));
 }
@@ -492,11 +508,14 @@ getAccessibilityExtensionList(abilityType: AbilityType, stateType: AbilityState)
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 let abilityType : accessibility.AbilityType = 'spoken';
 let abilityState : accessibility.AbilityState = 'enable';
 let extensionList: accessibility.AccessibilityAbilityInfo[] = [];
 try {
-    accessibility.getAccessibilityExtensionList(abilityType, abilityState).then((data) => {
+    accessibility.getAccessibilityExtensionList(abilityType, abilityState)
+    .then((data: accessibility.AccessibilityAbilityInfo[]) => {
         for (let item of data) {
             console.info(item.id);
             console.info(item.name);
@@ -505,7 +524,8 @@ try {
             extensionList.push(item);
         }
         console.info('get accessibility extension list success');
-    }).catch((err) => {
+    })
+    .catch((err: object) => {
         console.error('failed to get accessibility extension list because ' + JSON.stringify(err));
     });
 } catch (exception) {
@@ -532,11 +552,15 @@ getAccessibilityExtensionList(abilityType: AbilityType, stateType: AbilityState,
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+import { BusinessError } from '@ohos.base';
+
 let abilityType : accessibility.AbilityType = 'spoken';
 let abilityState : accessibility.AbilityState = 'enable';
 let extensionList: accessibility.AccessibilityAbilityInfo[] = [];
 try {
-    accessibility.getAccessibilityExtensionList(abilityType, abilityState, (err, data) => {
+    accessibility.getAccessibilityExtensionList(abilityType, abilityState, 
+    (err: BusinessError<void>, data: accessibility.AccessibilityAbilityInfo[]) => {
         if (err) {
             console.error('failed to get accessibility extension list because ' + JSON.stringify(err));
             return;
@@ -572,6 +596,8 @@ getCaptionsManager(): CaptionsManager
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 let captionsManager = accessibility.getCaptionsManager();
 ```
 
@@ -593,8 +619,10 @@ on(type: 'accessibilityStateChange', callback: Callback&lt;boolean&gt;): void
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 try {
-    accessibility.on('accessibilityStateChange', (data) => {
+    accessibility.on('accessibilityStateChange', (data: boolean) => {
         console.info('subscribe accessibility state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
@@ -620,8 +648,10 @@ on(type: 'touchGuideStateChange', callback: Callback&lt;boolean&gt;): void
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 try {
-    accessibility.on('touchGuideStateChange', (data) => {
+    accessibility.on('touchGuideStateChange', (data: boolean) => {
         console.info('subscribe touch guide state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
@@ -647,8 +677,10 @@ off(type: 'accessibilityStateChange', callback?: Callback&lt;boolean&gt;): void
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 try {
-    accessibility.off('accessibilityStateChange', (data) => {
+    accessibility.off('accessibilityStateChange', (data: boolean) => {
         console.info('Unsubscribe accessibility state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
@@ -674,8 +706,10 @@ off(type: 'touchGuideStateChange', callback?: Callback&lt;boolean&gt;): void
 **示例：**
 
 ```ts
+import accessibility from '@ohos.accessibility';
+
 try {
-    accessibility.off('touchGuideStateChange', (data) => {
+    accessibility.off('touchGuideStateChange', (data: boolean) => {
         console.info('Unsubscribe touch guide state change, result: ' + JSON.stringify(data));
     });
 } catch (exception) {
@@ -700,9 +734,11 @@ isOpenAccessibility(): Promise&lt;boolean&gt;
 **示例：**
 
 ```ts
-accessibility.isOpenAccessibility().then((data) => {
+import accessibility from '@ohos.accessibility';
+
+accessibility.isOpenAccessibility().then((data: boolean) => {
     console.info('success data:isOpenAccessibility : ' + JSON.stringify(data))
-}).catch((err) => {
+}).catch((err: object) => {
     console.error('failed to  isOpenAccessibility because ' + JSON.stringify(err));
 });
 ```
@@ -724,7 +760,10 @@ isOpenAccessibility(callback: AsyncCallback&lt;boolean&gt;): void
 **示例：**
 
 ```ts
-accessibility.isOpenAccessibility((err, data) => {
+import accessibility from '@ohos.accessibility';
+import { BusinessError } from '@ohos.base';
+
+accessibility.isOpenAccessibility((err: BusinessError<void>, data: boolean) => {
     if (err) {
         console.error('failed to isOpenAccessibility because ' + JSON.stringify(err));
         return;
@@ -750,9 +789,11 @@ isOpenTouchGuide(): Promise&lt;boolean&gt;
 **示例：**
 
 ```ts
-accessibility.isOpenTouchGuide().then((data) => {
+import accessibility from '@ohos.accessibility';
+
+accessibility.isOpenTouchGuide().then((data: boolean) => {
     console.info('success data:isOpenTouchGuide : ' + JSON.stringify(data))
-}).catch((err) => {
+}).catch((err: object) => {
     console.error('failed to  isOpenTouchGuide because ' + JSON.stringify(err));
 });
 ```
@@ -774,7 +815,10 @@ isOpenTouchGuide(callback: AsyncCallback&lt;boolean&gt;): void
 **示例：**
 
 ```ts
-accessibility.isOpenTouchGuide((err, data) => {
+import accessibility from '@ohos.accessibility';
+import { BusinessError } from '@ohos.base';
+
+accessibility.isOpenTouchGuide((err: BusinessError<void>, data: boolean) => {
     if (err) {
         console.error('failed to isOpenTouchGuide because ' + JSON.stringify(err));
         return;
@@ -811,14 +855,16 @@ sendEvent(event: EventInfo): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-let eventInfo = new accessibility.EventInfo({
-  'type':'click',
-  'bundleName':'com.example.MyApplication',
-  'triggerAction':'click'
+import accessibility from '@ohos.accessibility';
+
+let eventInfo: accessibility.EventInfo = ({
+  type: 'click',
+  bundleName: 'com.example.MyApplication',
+  triggerAction: 'click'
 });
 accessibility.sendEvent(eventInfo).then(() => {
     console.info('send event success');
-}).catch((err) => {
+}).catch((err: object) => {
     console.error('failed to sendEvent because ' + JSON.stringify(err));
 });
 ```
@@ -846,12 +892,15 @@ sendEvent(event: EventInfo, callback: AsyncCallback&lt;void&gt;): void
 **示例：**
 
 ```ts
-let eventInfo = new accessibility.EventInfo({
-  'type':'click',
-  'bundleName':'com.example.MyApplication',
-  'triggerAction':'click'
+import accessibility from '@ohos.accessibility';
+import { BusinessError } from '@ohos.base';
+
+let eventInfo: accessibility.EventInfo = ({
+  type: 'click',
+  bundleName: 'com.example.MyApplication',
+  triggerAction: 'click'
 });
-accessibility.sendEvent(eventInfo, (err, data) => {
+accessibility.sendEvent(eventInfo, (err: BusinessError<void>) => {
     if (err) {
         console.error('failed to sendEvent because ' + JSON.stringify(err));
         return;
@@ -883,15 +932,17 @@ sendAccessibilityEvent(event: EventInfo): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-let eventInfo = new accessibility.EventInfo({
-    'type':'click',
-    'bundleName':'com.example.MyApplication',
-    'triggerAction':'click'
+import accessibility from '@ohos.accessibility';
+
+let eventInfo: accessibility.EventInfo = ({
+  type: 'click',
+  bundleName: 'com.example.MyApplication',
+  triggerAction: 'click'
 });
 try {
     accessibility.sendAccessibilityEvent(eventInfo).then(() => {
         console.info('send event success');
-    }).catch((err) => {
+    }).catch((err: object) => {
         console.error('failed to send event because ' + JSON.stringify(err));
     });
 } catch (exception) {
@@ -917,13 +968,16 @@ sendAccessibilityEvent(event: EventInfo, callback: AsyncCallback&lt;void&gt;): v
 **示例：**
 
 ```ts
-let eventInfo = new accessibility.EventInfo({
-    'type':'click',
-    'bundleName':'com.example.MyApplication',
-    'triggerAction':'click'
+import accessibility from '@ohos.accessibility';
+import { BusinessError } from '@ohos.base';
+
+let eventInfo: accessibility.EventInfo = ({
+  type: 'click',
+  bundleName: 'com.example.MyApplication',
+  triggerAction: 'click'
 });
 try {
-    accessibility.sendEvent(eventInfo, (err, data) => {
+    accessibility.sendEvent(eventInfo, (err: BusinessError<void>) => {
         if (err) {
             console.error('failed to send event because ' + JSON.stringify(err));
             return;
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-accessibilityExtensionAbility.md b/zh-cn/application-dev/reference/apis/js-apis-application-accessibilityExtensionAbility.md
index 209e20483059e5ca06dd284e3b52818a517acb2b..4e676cff985be6e0ecceecbd4945ab524b86ddc3 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-accessibilityExtensionAbility.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-accessibilityExtensionAbility.md
@@ -92,11 +92,13 @@ onConnect(): void;
 **示例：**
 
 ```ts
+import AccessibilityExtensionAbility from '@ohos.application.AccessibilityExtensionAbility';
+
 class MyAccessibilityExtensionAbility extends AccessibilityExtensionAbility {
-    onConnect() {
+    onConnect(): void {
         console.log('AxExtensionAbility onConnect');
     }
-};
+}
 ```
 
 ## AccessibilityExtensionAbility.onDisconnect
@@ -110,11 +112,13 @@ onDisconnect(): void;
 **示例：**
 
 ```ts
+import AccessibilityExtensionAbility from '@ohos.application.AccessibilityExtensionAbility';
+
 class MyAccessibilityExtensionAbility extends AccessibilityExtensionAbility {
-    onDisconnect() {
+    onDisconnect(): void {
         console.log('AxExtensionAbility onDisconnect');
     }
-};
+}
 ```
 
 ## AccessibilityExtensionAbility.onAccessibilityEvent
@@ -134,14 +138,16 @@ onAccessibilityEvent(event: AccessibilityEvent): void;
 **示例：**
 
 ```ts
+import AccessibilityExtensionAbility , { AccessibilityEvent } from '@ohos.application.AccessibilityExtensionAbility';
+
 class MyAccessibilityExtensionAbility extends AccessibilityExtensionAbility {
-    onAccessibilityEvent(event) {
+    onAccessibilityEvent(event: AccessibilityEvent): void {
         console.log('AxExtensionAbility onAccessibilityEvent');
         if (event.eventType === 'click') {
             console.log('AxExtensionAbility onAccessibilityEvent: click');
         }
     }
-};
+}
 ```
 
 ## AccessibilityExtensionAbility.onKeyEvent
@@ -161,14 +167,17 @@ onKeyEvent(keyEvent: KeyEvent): boolean;
 **示例：**
 
 ```ts
+import AccessibilityExtensionAbility from '@ohos.application.AccessibilityExtensionAbility';
+import { KeyEvent } from '@ohos.multimodalInput.keyEvent';
+
 class MyAccessibilityExtensionAbility extends AccessibilityExtensionAbility {
-    onKeyEvent(keyEvent) {
+    onKeyEvent(keyEvent: KeyEvent): boolean {
         console.log('AxExtensionAbility onKeyEvent');
-        if (keyEvent.keyCode === 22) {
-            console.log('AxExtensionAbility onKeyEvent: intercept 22');
+        if (keyEvent.key.code === 16) {
+            console.log('AxExtensionAbility onKeyEvent: intercept 16');
             return true;
         }
         return false;
     }
-};
+}
 ```
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-accessibilityExtensionContext.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-accessibilityExtensionContext.md
index af31fca7a6ecb076efbfc12b2d240415dd7a71d5..2b81283439f6686e16ea8043eca6469fe9afd9d9 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-accessibilityExtensionContext.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-accessibilityExtensionContext.md
@@ -102,11 +102,11 @@ let targetNames = ['com.ohos.xyz'];
 try {
     axContext.setTargetBundleName(targetNames).then(() => {
         console.info('set target bundle names success');
-    }).catch((err) => {
-        console.error('failed to set target bundle names, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to set target bundle names, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to set target bundle names, because ${JSON.stringify(exception)}');
+    console.error(`failed to set target bundle names, because ${JSON.stringify(exception)}`);
 };
 ```
 
@@ -131,14 +131,14 @@ setTargetBundleName(targetNames: Array\<string>, callback: AsyncCallback\<void>)
 let targetNames = ['com.ohos.xyz'];
 try {
     axContext.setTargetBundleName(targetNames, (err, data) => {
-        if (err && err.code) {
-            console.error('failed to set target bundle names, because ${JSON.stringify(err)}');
+        if (err) {
+            console.error(`failed to set target bundle names, because ${JSON.stringify(err)}`);
             return;
         }
         console.info('set target bundle names success');
     });
 } catch (exception) {
-    console.error('failed to set target bundle names, because ${JSON.stringify(exception)}');
+    console.error(`failed to set target bundle names, because ${JSON.stringify(exception)}`);
 };
 ```
 
@@ -178,11 +178,11 @@ try {
     axContext.getFocusElement().then((data) => {
         focusElement = data;
         console.log('get focus element success');
-    }).catch((err) => {
-        console.error('failed to get focus element, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to get focus element, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to get focus element, because ${JSON.stringify(exception)}');
+    console.error(`failed to get focus element, because ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -214,15 +214,15 @@ getFocusElement(callback: AsyncCallback\<AccessibilityElement>): void;
 let focusElement;
 try {
     axContext.getFocusElement((err, data) => {
-        if (err && err.code) {
-            console.error('failed to get focus element, because ${JSON.stringify(err)}');
+        if (err) {
+            console.error(`failed to get focus element, because ${JSON.stringify(err)}`);
             return;
         }
         focusElement = data;
         console.info('get focus element success');
     });
 } catch (exception) {
-    console.error('failed to get focus element, because ${JSON.stringify(exception)}');
+    console.error(`failed to get focus element, because ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -256,15 +256,15 @@ let focusElement;
 let isAccessibilityFocus = true;
 try {
     axContext.getFocusElement(isAccessibilityFocus, (err, data) => {
-    if (err && err.code) {
-        console.error('failed to get focus element, because ${JSON.stringify(err)}');
+    if (err) {
+        console.error(`failed to get focus element, because ${JSON.stringify(err)}`);
         return;
     }
     focusElement = data;
     console.info('get focus element success');
 });
 } catch (exception) {
-    console.error('failed to get focus element, because ${JSON.stringify(exception)}');
+    console.error(`failed to get focus element, because ${JSON.stringify(exception)}`);
 }
 ```
 ## AccessibilityExtensionContext.getWindowRootElement
@@ -303,11 +303,11 @@ try {
     axContext.getWindowRootElement().then((data) => {
         rootElement = data;
         console.log('get root element of the window success');
-    }).catch((err) => {
-        console.error('failed to get root element of the window, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to get root element of the window, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to get root element of the window, ${JSON.stringify(exception)}');
+    console.error(`failed to get root element of the window, ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -339,15 +339,15 @@ getWindowRootElement(callback: AsyncCallback\<AccessibilityElement>): void;
 let rootElement;
 try {
     axContext.getWindowRootElement((err, data) => {
-    if (err && err.code) {
-        console.error('failed to get root element of the window, because ${JSON.stringify(err)}');
+    if (err) {
+        console.error(`failed to get root element of the window, because ${JSON.stringify(err)}`);
         return;
     }
     rootElement = data;
     console.info('get root element of the window success');
 });
 } catch (exception) {
-    console.error('failed to get root element of the window, because ${JSON.stringify(exception)}');
+    console.error(`failed to get root element of the window, because ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -381,15 +381,15 @@ let rootElement;
 let windowId = 10;
 try {
     axContext.getWindowRootElement(windowId, (err, data) => {
-    if (err && err.code) {
-        console.error('failed to get root element of the window, because ${JSON.stringify(err)}');
+    if (err) {
+        console.error(`failed to get root element of the window, because ${JSON.stringify(err)}`);
         return;
     }
     rootElement = data;
     console.info('get root element of the window success');
 });
 } catch (exception) {
-    console.error('failed to get root element of the window, because ${JSON.stringify(exception)}');
+    console.error(`failed to get root element of the window, because ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -429,11 +429,11 @@ try {
     axContext.getWindows().then((data) => {
         windows = data;
         console.log('get windows success');
-    }).catch((err) => {
-        console.error('failed to get windows, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to get windows, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to get windows, because ${JSON.stringify(exception)}');
+    console.error(`failed to get windows, because ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -465,15 +465,15 @@ getWindows(callback: AsyncCallback\<Array\<AccessibilityElement>>): void;
 let windows;
 try {
     axContext.getWindows((err, data) => {
-        if (err && err.code) {
-            console.error('failed to get windows, because ${JSON.stringify(err)}');
+        if (err) {
+            console.error(`failed to get windows, because ${JSON.stringify(err)}`);
             return;
         }
         windows = data;
         console.info('get windows success');
     });
 } catch (exception) {
-    console.error('failed to get windows, because ${JSON.stringify(exception)}');
+    console.error(`failed to get windows, because ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -507,15 +507,15 @@ let windows;
 let displayId = 10;
 try {
     axContext.getWindows(displayId, (err, data) => {
-        if (err && err.code) {
-            console.error('failed to get windows, because ${JSON.stringify(err)}');
+        if (err) {
+            console.error(`failed to get windows, because ${JSON.stringify(err)}`);
             return;
         }
         windows = data;
         console.info('get windows success');
     });
 } catch (exception) {
-    console.error('failed to get windows, because ${JSON.stringify(exception)}');
+    console.error(`failed to get windows, because ${JSON.stringify(exception)}`);
 }
 ```
 
@@ -560,11 +560,11 @@ try {
     }
     axContext.injectGesture(gesturePath).then(() => {
         console.info('inject gesture success');
-    }).catch((err) => {
-        console.error('failed to inject gesture, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to inject gesture, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to inject gesture, because ${JSON.stringify(exception)}');
+    console.error(`failed to inject gesture, because ${JSON.stringify(exception)}`);
 }
 ```
 ## AccessibilityExtensionContext.injectGesture
@@ -602,14 +602,14 @@ try {
         gesturePath.points.push(gesturePoint);
     }
     axContext.injectGesture(gesturePath, (err, data) => {
-        if (err && err.code) {
-            console.error('failed to inject gesture, because ${JSON.stringify(err)}');
+        if (err) {
+            console.error(`failed to inject gesture, because ${JSON.stringify(err)}`);
             return;
         }
         console.info('inject gesture success');
     });
 } catch (exception) {
-    console.error('failed to inject gesture, because ${JSON.stringify(exception)}');
+    console.error(`failed to inject gesture, because ${JSON.stringify(exception)}`);
 }
 ```
 ## AccessibilityElement<sup>9+</sup>
@@ -635,13 +635,12 @@ attributeNames\<T extends keyof ElementAttributeValues>(): Promise\<Array\<T>>;
 **示例：**
 
 ```ts
-let rootElement;
 let attributeNames;
 rootElement.attributeNames().then((data) => {
     console.log('get attribute names success');
     attributeNames = data;
-}).catch((err) => {
-    console.log('failed to get attribute names, because ${JSON.stringify(err)}');
+}).catch((err: object) => {
+    console.log(`failed to get attribute names, because ${JSON.stringify(err)}`);
 });
 ```
 ### attributeNames
@@ -661,11 +660,10 @@ attributeNames\<T extends keyof ElementAttributeValues>(callback: AsyncCallback\
 **示例：**
 
 ```ts
-let rootElement;
 let attributeNames;
 rootElement.attributeNames((err, data) => {
     if (err) {
-        console.error('failed to get attribute names, because ${JSON.stringify(err)}');
+        console.error(`failed to get attribute names, because ${JSON.stringify(err)}`);
         return;
     }
     attributeNames = data;
@@ -705,16 +703,15 @@ attributeValue\<T extends keyof ElementAttributeValues>(attributeName: T): Promi
 ```ts
 let attributeName = 'name';
 let attributeValue;
-let rootElement;
 try {
     rootElement.attributeValue(attributeName).then((data) => {
         console.log('get attribute value by name success');
         attributeValue = data;
-    }).catch((err) => {
-        console.error('failed to get attribute value, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to get attribute value, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to get attribute value, because ${JSON.stringify(exception)}');
+    console.error(`failed to get attribute value, because ${JSON.stringify(exception)}`);
 }
 ```
 ### attributeValue
@@ -744,20 +741,19 @@ attributeValue\<T extends keyof ElementAttributeValues>(attributeName: T,
 **示例：**
 
 ```ts
-let rootElement;
 let attributeValue;
 let attributeName = 'name';
 try {
     rootElement.attributeValue(attributeName, (err, data) => {
         if (err) {
-            console.error('failed to get attribute value, because ${JSON.stringify(err)}');
+            console.error(`failed to get attribute value, because ${JSON.stringify(err)}`);
             return;
         }
         attributeValue = data;
         console.info('get attribute value success');
     });
 } catch (exception) {
-    console.error('failed to get attribute value, because ${JSON.stringify(exception)}');
+    console.error(`failed to get attribute value, because ${JSON.stringify(exception)}`);
 }
 ```
 ### actionNames
@@ -777,13 +773,12 @@ actionNames(): Promise\<Array\<string>>;
 **示例：**
 
 ```ts
-let rootElement;
 let actionNames;
 rootElement.actionNames().then((data) => {
     console.log('get action names success');
     actionNames = data;
-}).catch((err) => {
-    console.error('failed to get action names because ${JSON.stringify(err)}');
+}).catch((err: object) => {
+    console.error(`failed to get action names because ${JSON.stringify(err)}`);
 });
 ```
 ### actionNames
@@ -803,11 +798,10 @@ actionNames(callback: AsyncCallback\<Array\<string>>): void;
 **示例：**
 
 ```ts
-let rootElement;
 let actionNames;
 rootElement.actionNames((err, data) => {
     if (err) {
-        console.error('failed to get action names, because ${JSON.stringify(err)}');
+        console.error(`failed to get action names, because ${JSON.stringify(err)}`);
         return;
     }
     actionNames = data;
@@ -846,15 +840,14 @@ performAction(actionName: string, parameters?: object): Promise\<void>;
 **示例：**
 
 ```ts
-let rootElement;
 try {
     rootElement.performAction('action').then((data) => {
         console.info('perform action success');
-    }).catch((err) => {
-        console.error('failed to perform action, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to perform action, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to perform action, because ${JSON.stringify(exception)}');
+    console.error(`failed to perform action, because ${JSON.stringify(exception)}`);
 }
 ```
 ### performAction
@@ -883,17 +876,16 @@ performAction(actionName: string, callback: AsyncCallback\<void>): void;
 **示例：**
 
 ```ts
-let rootElement;
 try {
     rootElement.performAction('action', (err, data) => {
         if (err) {
-            console.error('failed to perform action, because ${JSON.stringify(err)}');
+            console.error(`failed to perform action, because ${JSON.stringify(err)}`);
             return;
         }
         console.info('perform action success');
     });
 } catch (exception) {
-    console.error('failed to perform action, because ${JSON.stringify(exception)}');
+    console.error(`failed to perform action, because ${JSON.stringify(exception)}`);
 }
 ```
 ### performAction
@@ -923,7 +915,6 @@ performAction(actionName: string, parameters: object, callback: AsyncCallback\<v
 **示例：**
 
 ```ts
-let rootElement;
 let actionName = 'action';
 let parameters = {
     'setText': 'test text'
@@ -931,13 +922,13 @@ let parameters = {
 try {
     rootElement.performAction(actionName, parameters, (err, data) => {
         if (err) {
-            console.error('failed to perform action, because ${JSON.stringify(err)}');
+            console.error(`failed to perform action, because ${JSON.stringify(err)}`);
             return;
         }
         console.info('perform action success');
     });
 } catch (exception) {
-    console.error('failed to perform action, because ${JSON.stringify(exception)}');
+    console.error(`failed to perform action, because ${JSON.stringify(exception)}`);
 }
 ```
 ### findElement('content')
@@ -964,7 +955,6 @@ findElement(type: 'content', condition: string): Promise\<Array\<AccessibilityEl
 **示例：**
 
 ```ts
-let rootElement;
 let type = 'content';
 let condition = 'keyword';
 let elements;
@@ -972,11 +962,11 @@ try {
     rootElement.findElement(type, condition).then((data) => {
         elements = data;
         console.log('find element success');
-    }).catch((err) => {
-        console.error('failed to find element, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to find element, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to find element, because ${JSON.stringify(exception)}');
+    console.error(`failed to find element, because ${JSON.stringify(exception)}`);
 }
 ```
 ### findElement('content')
@@ -998,21 +988,20 @@ findElement(type: 'content', condition: string, callback: AsyncCallback\<Array\<
 **示例：**
 
 ```ts
-let rootElement;
 let type = 'content';
 let condition = 'keyword';
 let elements;
 try {
     rootElement.findElement(type, condition, (err, data) => {
         if (err) {
-            console.error('failed to find element, because ${JSON.stringify(err)}');
+            console.error(`failed to find element, because ${JSON.stringify(err)}`);
             return;
         }
         elements = data;
         console.info('find element success');
     });
 } catch (exception) {
-    console.error('failed to find element, because ${JSON.stringify(exception)}');
+    console.error(`failed to find element, because ${JSON.stringify(exception)}`);
 }
 ```
 ### findElement('focusType')
@@ -1039,7 +1028,6 @@ findElement(type: 'focusType', condition: FocusType): Promise\<AccessibilityElem
 **示例：**
 
 ```ts
-let rootElement;
 let type = 'focusType';
 let condition = 'normal';
 let element;
@@ -1047,11 +1035,11 @@ try {
     rootElement.findElement(type, condition).then((data) => {
         element = data;
         console.log('find element success');
-    }).catch((err) => {
-        console.error('failed to find element, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to find element, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to find element, because ${JSON.stringify(exception)}');
+    console.error(`failed to find element, because ${JSON.stringify(exception)}`);
 }
 ```
 ### findElement('focusType')
@@ -1073,21 +1061,20 @@ findElement(type: 'focusType', condition: FocusType, callback: AsyncCallback\<Ac
 **示例：**
 
 ```ts
-let rootElement;
 let type = 'focusType';
 let condition = 'normal';
 let element;
 try {
     rootElement.findElement(type, condition, (err, data) => {
         if (err) {
-            console.error('failed to find element, because ${JSON.stringify(err)}');
+            console.error(`failed to find element, because ${JSON.stringify(err)}`);
             return;
         }
         element = data;
         console.info('find element success');
     });
 } catch (exception) {
-    console.error('failed to find element, because ${JSON.stringify(exception)}');
+    console.error(`failed to find element, because ${JSON.stringify(exception)}`);
 }
 ```
 ### findElement('focusDirection')
@@ -1114,7 +1101,6 @@ findElement(type: 'focusDirection', condition: FocusDirection): Promise\<Accessi
 **示例：**
 
 ```ts
-let rootElement;
 let type = 'focusDirection';
 let condition = 'up';
 let element;
@@ -1122,11 +1108,11 @@ try {
     rootElement.findElement(type, condition).then((data) => {
         element = data;
         console.log('find element success');
-    }).catch((err) => {
-        console.error('failed to find element, because ${JSON.stringify(err)}');
+    }).catch((err: object) => {
+        console.error(`failed to find element, because ${JSON.stringify(err)}`);
     });
 } catch (exception) {
-    console.error('failed to find element, because ${JSON.stringify(exception)}');
+    console.error(`failed to find element, because ${JSON.stringify(exception)}`);
 }
 ```
 ### findElement('focusDirection')
@@ -1148,20 +1134,19 @@ findElement(type: 'focusDirection', condition: FocusDirection, callback: AsyncCa
 **示例：**
 
 ```ts
-let rootElement;
 let type = 'focusDirection';
 let condition = 'up';
 let elements;
 try {
     rootElement.findElement(type, condition, (err, data) => {
         if (err) {
-            console.error('failed to find element, because ${JSON.stringify(err)}');
+            console.error(`failed to find element, because ${JSON.stringify(err)}`);
             return;
         }
         elements = data;
         console.info('find element success');
     });
 } catch (exception) {
-    console.error('failed to find element, because ${JSON.stringify(exception)}');
+    console.error(`failed to find element, because ${JSON.stringify(exception)}`);
 }
 ```