鸿蒙指南文档ArkTS适配

Signed-off-by: Nq30043944 <qinlong18@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-device-manager.md

@@ -21,7 +21,7 @@
 
 ## 导入模块
 
-```js
+```ts
 import deviceManager from '@ohos.distributedHardware.deviceManager';
 ```
 
@@ -43,18 +43,23 @@ createDeviceManager(bundleName: string, callback: AsyncCallback<DeviceManager
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+  let dmInstance: deviceManager.Devicemanager | null = null;
   try {
-    deviceManager.createDeviceManager("ohos.samples.jshelloworld", (err, data) => {
+    deviceManager.createDeviceManager("ohos.samples.jshelloworld", (err: BusinessError, data: deviceManager.Devicemanager) => {
       if (err) { 
         console.error("createDeviceManager errCode:" + err.code + ",errMessage:" + err.message);
         return;
       }
       console.info("createDeviceManager success");
-      let dmInstance = data;
+      dmInstance = data;
     });
   } catch(err) {
-    console.error("createDeviceManager errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("createDeviceManager errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -243,11 +248,14 @@ release(): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.release();
   } catch (err) {
-    console.error("release errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("release errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -277,11 +285,15 @@ getTrustedDeviceListSync(): Array<DeviceInfo>
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceInfoList = dmInstance.getTrustedDeviceListSync();
+    let deviceInfoList: Array<deviceManager.DeviceInfo> = dmInstance.getTrustedDeviceListSync();
   } catch (err) {
-    console.error("getTrustedDeviceListSync errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getTrustedDeviceListSync errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -317,11 +329,15 @@ getTrustedDeviceListSync(isRefresh: boolean): Array&lt;DeviceInfo&gt;
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceInfoList = dmInstance.getTrustedDeviceListSync(true);
+    let deviceInfoList: Array<deviceManager.DeviceInfo> = dmInstance.getTrustedDeviceListSync(true);
   } catch (err) {
-    console.error("getTrustedDeviceListSync errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getTrustedDeviceListSync errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -343,9 +359,11 @@ getTrustedDeviceList(callback:AsyncCallback&lt;Array&lt;DeviceInfo&gt;&gt;): voi
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
   try {
-    dmInstance.getTrustedDeviceList((err, data) => {
+    dmInstance.getTrustedDeviceList((err: BusinessError, data: deviceManager.DeviceInfo) => {
       if (err) {
         console.error("getTrustedDeviceList errCode:" + err.code + ",errMessage:" + err.message);
         return;
@@ -353,7 +371,8 @@ getTrustedDeviceList(callback:AsyncCallback&lt;Array&lt;DeviceInfo&gt;&gt;): voi
       console.log('get trusted device info: ' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("getTrustedDeviceList errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getTrustedDeviceList errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -375,10 +394,13 @@ getTrustedDeviceList(): Promise&lt;Array&lt;DeviceInfo&gt;&gt;
 
 **示例：**
 
-  ```js
-  dmInstance.getTrustedDeviceList().then((data) => {
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+  dmInstance.getTrustedDeviceList().then((data: Array<deviceManager.DeviceInfo>) => {
     console.log('get trusted device info: ' + JSON.stringify(data));
-    }).catch((err) => {
+    }).catch((err: BusinessError) => {
       console.error("getTrustedDeviceList errCode:" + err.code + ",errMessage:" + err.message);
   });
   ```
@@ -409,11 +431,15 @@ getLocalDeviceInfoSync(): [DeviceInfo](#deviceinfo)
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceInfo = dmInstance.getLocalDeviceInfoSync();
+    let deviceInfo: deviceManager.DeviceInfo = dmInstance.getLocalDeviceInfoSync();
   } catch (err) {
-    console.error("getLocalDeviceInfoSync errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getLocalDeviceInfoSync errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -435,9 +461,13 @@ getLocalDeviceInfo(callback:AsyncCallback&lt;DeviceInfo&gt;): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+
   try {
-    dmInstance.getLocalDeviceInfo((err, data) => {
+    dmInstance.getLocalDeviceInfo((err: BusinessError, data: deviceManager.DeviceInfo) => {
     if (err) {
       console.error("getLocalDeviceInfo errCode:" + err.code + ",errMessage:" + err.message);
       return;
@@ -445,7 +475,8 @@ getLocalDeviceInfo(callback:AsyncCallback&lt;DeviceInfo&gt;): void
       console.log('get local device info: ' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("getLocalDeviceInfo errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getLocalDeviceInfo errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -467,10 +498,13 @@ getLocalDeviceInfo(): Promise&lt;DeviceInfo&gt;
 
 **示例：**
 
-  ```js
-  dmInstance.getLocalDeviceInfo().then((data) => {
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+  dmInstance.getLocalDeviceInfo().then((data: deviceManager.DeviceInfo) => {
     console.log('get local device info: ' + JSON.stringify(data));
-  }).catch((err) => {
+  }).catch((err: BusinessError) => {
     console.error("getLocalDeviceInfo errCode:" + err.code + ",errMessage:" + err.message);
   });
   ```
@@ -494,11 +528,14 @@ getDeviceInfo(networkId: string, callback:AsyncCallback&lt;DeviceInfo&gt;): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
   try {
     // 设备网络标识，可以从可信设备列表中获取
     let networkId = "xxxxxxx"
-    dmInstance.getDeviceInfo(networkId, (err, data) => {
+    dmInstance.getDeviceInfo(networkId, (err: BusinessError, data: deviceManager.DeviceInfo) => {
     if (err) {
       console.error("getDeviceInfo errCode:" + err.code + ",errMessage:" + err.message);
       return;
@@ -506,7 +543,8 @@ getDeviceInfo(networkId: string, callback:AsyncCallback&lt;DeviceInfo&gt;): void
       console.log('get device info: ' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("getDeviceInfo errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getDeviceInfo errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -534,12 +572,15 @@ getDeviceInfo(networkId: string): Promise&lt;DeviceInfo&gt;
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
   // 设备网络标识，可以从可信设备列表中获取
   let networkId = "xxxxxxx"
-  dmInstance.getDeviceInfo(networkId).then((data) => {
+  dmInstance.getDeviceInfo(networkId).then((data: deviceManager.DeviceInfo) => {
     console.log('get device info: ' + JSON.stringify(data));
-  }).catch((err) => {
+  }).catch((err: BusinessError) => {
     console.error("getDeviceInfo errCode:" + err.code + ",errMessage:" + err.message);
   });
   ```
@@ -571,22 +612,35 @@ startDeviceDiscovery(subscribeInfo: SubscribeInfo): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  interface SubscribeInfo {
+    subscribeId: number,
+    mode: number, // 主动模式
+    medium: number,  // 自动发现类型，同时支持多种发现类型
+    freq: number,    // 高频率
+    isSameAccount: boolean,
+    isWakeRemote: boolean,
+    capability: number
+  };
+
   // 生成发现标识，随机数确保每次调用发现接口的标识不一致
-  var subscribeId = Math.floor(Math.random() * 10000 + 1000);
-  var subscribeInfo = {
-      "subscribeId": subscribeId,
-      "mode": 0xAA, // 主动模式
-      "medium": 0,  // 自动发现类型，同时支持多种发现类型
-      "freq": 2,    // 高频率
-      "isSameAccount": false,
-      "isWakeRemote": false,
-      "capability": 1
+  let subscribeId = Math.floor(Math.random() * 10000 + 1000);
+  let subscribeInfo: SubscribeInfo = {
+    subscribeId: subscribeId,
+    mode: 0xAA, // 主动模式
+    medium: 0,  // 自动发现类型，同时支持多种发现类型
+    freq: 2,    // 高频率
+    isSameAccount: false,
+    isWakeRemote: false,
+    capability: 1
   };
   try {
     dmInstance.startDeviceDiscovery(subscribeInfo); // 当有设备发现时，通过deviceFound回调通知给应用程序
   } catch (err) {
-    console.error("startDeviceDiscovery errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("startDeviceDiscovery errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -618,31 +672,57 @@ startDeviceDiscovery(subscribeInfo: SubscribeInfo, filterOptions?: string): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  interface Filters {
+    type: string,
+    value: number
+  }
+
+  interface FilterOptions {
+    filter_op: string, // 可选, 默认"OR"
+    filters: Filters[]
+    }
+
+  interface SubscribeInfo {
+    subscribeId: number,
+    mode: number, // 主动模式
+    medium: number,  // 自动发现类型，同时支持多种发现类型
+    freq: number,    // 高频率
+    isSameAccount: boolean,
+    isWakeRemote: boolean,
+    capability: number
+  }
+
   // 生成发现标识，随机数确保每次调用发现接口的标识不一致
-  var subscribeId = Math.floor(Math.random() * 10000 + 1000);
-  var subscribeInfo = {
-      "subscribeId": subscribeId,
-      "mode": 0xAA, // 主动模式
-      "medium": 0,  // 自动发现类型，同时支持多种发现类型
-      "freq": 2,    // 高频率
-      "isSameAccount": false,
-      "isWakeRemote": false,
-      "capability": 1
+  let subscribeId = Math.floor(Math.random() * 10000 + 1000);
+  let subscribeInfo: SubscribeInfo = {
+    subscribeId: subscribeId,
+    mode: 0xAA, // 主动模式
+    medium: 0,  // 自动发现类型，同时支持多种发现类型
+    freq: 2,    // 高频率
+    isSameAccount: false,
+    isWakeRemote: false,
+    capability: 1
   };
-  var filterOptions = {
-    "filter_op": "OR", // 可选, 默认"OR"
-    "filters": [
-        {
-            "type": "range",
-            "value": 50 // 需过滤发现设备的距离，单位(cm)
-        }
-    ]
+
+  let filters: Filters[] = [
+    {
+        type: "range",
+        value: 50 // 需过滤发现设备的距离，单位(cm)
+    }
+  ]
+
+  let filterOptions: FilterOptions = {
+    filter_op: "OR", // 可选, 默认"OR"
+    filters: filters
   };
   try {
     dmInstance.startDeviceDiscovery(subscribeInfo, JSON.stringify(filterOptions)); // 当有设备发现时，通过deviceFound回调通知给应用程序
   } catch (err) {
-    console.error("startDeviceDiscovery errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("startDeviceDiscovery errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -672,13 +752,16 @@ stopDeviceDiscovery(subscribeId: number): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     // stopDeviceDiscovery和startDeviceDiscovery需配对使用，入参需要和startDeviceDiscovery接口传入的subscribeId值相等
-    var subscribeId = 12345;
+    let subscribeId = 12345;
     dmInstance.stopDeviceDiscovery(subscribeId);
   } catch (err) {
-    console.error("stopDeviceDiscovery errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("stopDeviceDiscovery errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -709,19 +792,30 @@ publishDeviceDiscovery(publishInfo: PublishInfo): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  interface PublishInfo {
+    publishId: number,
+    mode: number, // 主动模式
+    freq: number,    // 高频率
+    ranging: boolean  // 支持发现时测距
+  };
+
   // 生成发布标识，随机数确保每次调用发布接口的标识不一致
-  var publishId = Math.floor(Math.random() * 10000 + 1000);
-  var publishInfo = {
-      "publishId": publishId,
-      "mode": 0xAA, // 主动模式
-      "freq": 2,    // 高频率
-      "ranging": true  // 支持发现时测距
+  let publishId = Math.floor(Math.random() * 10000 + 1000);
+  let publishInfo: PublishInfo = {
+    publishId: publishId,
+    mode: 0xAA, // 主动模式
+    freq: 2,    // 高频率
+    ranging: true  // 支持发现时测距
   };
+
   try {
     dmInstance.publishDeviceDiscovery(publishInfo); // 当有发布结果时，通过回调通知给应用程序
   } catch (err) {
-    console.error("publishDeviceDiscovery errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("publishDeviceDiscovery errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -751,13 +845,16 @@ unPublishDeviceDiscovery(publishId: number): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     // unPublishDeviceDiscovery和publishDeviceDiscovery配对使用，入参需要和publishDeviceDiscovery接口传入的publishId值相等
-    var publishId = 12345;
+    let publishId = 12345;
     dmInstance.unPublishDeviceDiscovery(publishId);
   } catch (err) {
-    console.error("unPublishDeviceDiscovery errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("unPublishDeviceDiscovery errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -781,27 +878,55 @@ authenticateDevice(deviceInfo: DeviceInfo, authParam: AuthParam, callback: Async
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    deviceId: string = ""
+    pinToken?: number = 0
+  }
+
+  interface DeviceInfo {
+    deviceId: string,
+    deviceName: string
+    deviceType: number,
+    networkId: string,
+    range: number
+  };
+
+  interface ExtraInfo {
+    targetPkgName: string,
+    appName: string,
+    appDescription: string,
+    business: string
+  }
+
+  interface AuthParam {
+    authType: number,// 认证类型： 1 - 无帐号PIN码认证
+    extraInfo: ExtraInfo
+  }
+
   // 认证的设备信息，可以从发现的结果中获取
-  var deviceInfo ={
-      "deviceId": "XXXXXXXX",
-      "deviceName": "",
-      "deviceType": 0x0E,
-      "networkId" : "xxxxxxx",
-      "range" : 0
+  let deviceInfo: DeviceInfo = {
+    deviceId: "XXXXXXXX",
+    deviceName: "",
+    deviceType: 0x0E,
+    networkId: "xxxxxxx",
+    range: 0
   };
-  let extraInfo = {
-          'targetPkgName': 'ohos.samples.xxx',
-          'appName': 'xxx',
-          'appDescription': 'xxx',
-          'business': '0'
+  let extraInfo: ExtraInfo = {
+    targetPkgName: 'ohos.samples.xxx',
+    appName: 'xxx',
+    appDescription: 'xxx',
+    business: '0'
   }
-  let authParam = {
-      'authType': 1,// 认证类型： 1 - 无帐号PIN码认证
-      'extraInfo': extraInfo
+  let authParam: AuthParam = {
+    authType: 1,// 认证类型： 1 - 无帐号PIN码认证
+    extraInfo: extraInfo
   }
+
   try {
-    dmInstance.authenticateDevice(deviceInfo, authParam, (err, data) => {
+    dmInstance.authenticateDevice(deviceInfo, authParam, (err: BusinessError, data: Data) => {
       if (err) {
           console.error("authenticateDevice errCode:" + err.code + ",errMessage:" + err.message);
           return;
@@ -810,7 +935,8 @@ authenticateDevice(deviceInfo: DeviceInfo, authParam: AuthParam, callback: Async
       let token = data.pinToken;
     });
   } catch (err) {
-    console.error("authenticateDevice errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("authenticateDevice errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -840,18 +966,29 @@ unAuthenticateDevice(deviceInfo: DeviceInfo): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  interface DeviceInfo {
+    deviceId: string,
+    deviceName: string,
+    deviceType: number,
+    networkId: string,
+    range: number
+  }
+
   try {
-    var deviceInfo ={
-      "deviceId": "XXXXXXXX",
-      "deviceName": "",
-      "deviceType": 0x0E,
-      "networkId" : "xxxxxxx",
-      "range" : 0
+    let deviceInfo: DeviceInfo = {
+      deviceId: "XXXXXXXX",
+      deviceName: "",
+      deviceType: 0x0E,
+      networkId: "xxxxxxx",
+      range: 0
     };
     dmInstance.unAuthenticateDevice(deviceInfo);
   } catch (err) {
-    console.error("unAuthenticateDevice errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("unAuthenticateDevice errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -874,22 +1011,46 @@ verifyAuthInfo(authInfo: AuthInfo, callback: AsyncCallback&lt;{deviceId: string,
 
 **示例：**
 
-  ```js
-  let authInfo = {
-    "authType": 1,
-    "token": 123456,
-    "extraInfo": {}
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  interface ExtraInfo {
+    authType: number,
+    token: number
+  }
+
+  interface AuthInfo {
+    authType: number,
+    token: number,
+    extraInfo: ExtraInfo
+  }
+
+  class Data {
+    deviceId: string = ""
+    level: number = 0
+  }
+
+  let extraInfo: ExtraInfo = {
+    authType: 0,
+    token: 0
+  }
+
+  let authInfo: AuthInfo = {
+    authType: 1,
+    token: 123456,
+    extraInfo: extraInfo
   }
   try {
-    dmInstance.verifyAuthInfo(authInfo, (err, data) => {
-    if (err) {
-        console.error("verifyAuthInfo errCode:" + err.code + ",errMessage:" + err.message);
-        return;
+    dmInstance.verifyAuthInfo(authInfo, (err: BusinessError, data: Data) => {
+      if (err) {
+          console.error("verifyAuthInfo errCode:" + err.code + ",errMessage:" + err.message);
+          return;
     }
     console.info("verifyAuthInfo result:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("verifyAuthInfo errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("verifyAuthInfo errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -912,7 +1073,9 @@ setUserOperation(operateAction: number, params: string): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
  try {
     /*
       operateAction = 0 - 允许授权
@@ -925,7 +1088,8 @@ setUserOperation(operateAction: number, params: string): void;
     let operation = 0;
     dmInstance.setUserOperation(operation, "extra")
     } catch (err) {
-      console.error("setUserOperation errCode:" + err.code + ",errMessage:" + err.message);
+      let e: BusinessError = err as BusinessError;
+      console.error("setUserOperation errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -948,13 +1112,25 @@ requestCredentialRegisterInfo(requestInfo: string, callback: AsyncCallback<{regi
 
 **示例：**
 
-  ```js
-  let credentialInfo = {
-    "version" : "1.2.3",
-    "userId" : "123"
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  interface CredentialInfo {
+    version: string,
+    userId: string
   }
+
+  class Data {
+    registerInfo: string = ""
+  }
+
+  let credentialInfo: CredentialInfo = {
+    version: "1.2.3",
+    userId: "123"
+  }
+
   try {
-    dmInstance.requestCredentialRegisterInfo(credentialInfo, (data) => {
+    dmInstance.requestCredentialRegisterInfo(credentialInfo, (data：Data) => {
       if (data) {
           console.info("requestCredentialRegisterInfo result:" + JSON.stringify(data));
       } else {
@@ -962,7 +1138,8 @@ requestCredentialRegisterInfo(requestInfo: string, callback: AsyncCallback<{regi
       }
     });
   } catch (err) {
-    console.error("requestCredentialRegisterInfo err:" + err.code + "," + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("requestCredentialRegisterInfo err:" + e.code + "," + e.message);
   }
   ```
 
@@ -985,29 +1162,57 @@ importCredential(credentialInfo: string, callback: AsyncCallback<{resultInfo: st
 
 **示例：**
 
-  ```js
-  let credentialInfo = {
-    "processType" : 1,
-    "authType" : 1,
-    "userId" : "123",
-    "deviceId" : "aaa",
-    "version" : "1.2.3",
-    "devicePk" : "0000",
-    "credentialData" : 
-    [
-      {
-        "credentialType" : 2,
-        "credentialId" : "102",
-        "serverPk" : "3059301306072A8648CE3D020106082A8648CE3D03",
-        "pkInfoSignature" : "30440220490BCB4F822004C9A76AB8D97F80041FC0E",
-        "pkInfo" : "",
-        "authCode" : "",
-        "peerDeviceId" : ""
-      }
-    ]
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    resultInfo: string = ""
   }
+
+  interface CredentialData {
+    credentialType: number,
+    credentialId: string,
+    serverPk: string,
+    pkInfoSignature : string,
+    pkInfo: string,
+    authCode: string,
+    peerDeviceId: string
+  }
+
+  interface CredentialInfo {
+    processType: number,
+    authType: number,
+    userId: string,
+    deviceId: string,
+    version: string,
+    devicePk : string,
+    credentialData : CredentialData[]
+  }
+
+  let credentialData: CredentialData = [
+    {
+      credentialType: 2,
+      credentialId: "102",
+      serverPk: "3059301306072A8648CE3D020106082A8648CE3D03",
+      pkInfoSignature : "30440220490BCB4F822004C9A76AB8D97F80041FC0E",
+      pkInfo: "",
+      authCode: "",
+      peerDeviceId: ""
+    }
+  ]
+
+  let credentialInfo: CredentialInfo = {
+    processType: 1,
+    authType: 1,
+    userId: "123",
+    deviceId: "aaa",
+    version: "1.2.3",
+    devicePk : "0000",
+    credentialData : credentialData
+  }
+
   try {
-    dmInstance.importCredential(credentialInfo, (data) => {
+    dmInstance.importCredential(credentialInfo, (data: Data) => {
       if (data) {
           console.info("importCredential result:" + JSON.stringify(data));
       } else {
@@ -1015,7 +1220,8 @@ importCredential(credentialInfo: string, callback: AsyncCallback<{resultInfo: st
       }
     });
   } catch (err) {
-    console.error("importCredential err:" + err.code + "," + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("importCredential err:" + e.code + "," + e.message);
   }
   ```
 
@@ -1038,14 +1244,27 @@ deleteCredential(queryInfo: string, callback: AsyncCallback<{resultInfo: string}
 
 **示例：**
 
-  ```js
-  let queryInfo = {
-    "processType" : 1,
-    "authType" : 1,
-    "userId" : "123"
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    resultInfo: string = ""
+  }
+
+  interface QueryInfo {
+    processType: number,
+    authType: number,
+    userId: string
+  }
+
+  let queryInfo: QueryInfo = {
+    processType: 1,
+    authType: 1,
+    userId: "123"
   }
+
   try {
-    dmInstance.deleteCredential(queryInfo, (data) => {
+    dmInstance.deleteCredential(queryInfo, (data: Data) => {
       if (data) {
           console.info("deleteCredential result:" + JSON.stringify(data));
       } else {
@@ -1053,7 +1272,8 @@ deleteCredential(queryInfo: string, callback: AsyncCallback<{resultInfo: string}
       }
     });
   } catch (err) {
-    console.error("deleteCredential err:" + err.code + "," + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deleteCredential err:" + e.code + "," + e.message);
   }
   ```
 
@@ -1076,16 +1296,27 @@ ui状态变更回调。
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    param: string = ""
+  }
+
+  interface TmpStr {
+    verifyFailed: boolean
+  }
+
   try {
-    dmInstance.on('uiStateChange', (data) => {
+    dmInstance.on('uiStateChange', (data: Data) => {
     console.log("uiStateChange executed, dialog closed" + JSON.stringify(data))
-    var tmpStr = JSON.parse(data.param)
-    var isShow = tmpStr.verifyFailed
+    let tmpStr: TmpStr = JSON.parse(data.param)
+    let isShow = tmpStr.verifyFailed
     console.log("uiStateChange executed, dialog closed" + isShow)
   });
   } catch (err) {
-    console.error("uiStateChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("uiStateChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1108,11 +1339,14 @@ off(type: 'uiStateChange', callback?: Callback&lt;{ param: string}&gt;): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.off('uiStateChange');
   } catch (err) {
-    console.error("uiStateChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("uiStateChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1135,13 +1369,22 @@ on(type: 'deviceStateChange',  callback: Callback&lt;{ action: DeviceStateChange
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    action: deviceManager.DeviceStateChangeAction = 0
+    device: deviceManager.DeviceInfo = {}
+  }
+
   try {
-    dmInstance.on('deviceStateChange', (data) => {
+    dmInstance.on('deviceStateChange', (data: Data) => {
       console.info("deviceStateChange on:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceStateChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceStateChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1164,13 +1407,22 @@ off(type: 'deviceStateChange', callback?: Callback&lt;{ action: DeviceStateChang
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    action: deviceManager.DeviceStateChangeAction = 0
+    device: deviceManager.DeviceInfo = {}
+  }
+
   try {
-    dmInstance.off('deviceStateChange', (data) => {
+    dmInstance.off('deviceStateChange', (data: Data) => {
       console.info('deviceStateChange' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceStateChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceStateChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1193,13 +1445,23 @@ on(type: 'deviceFound', callback: Callback&lt;{ subscribeId: number, device: Dev
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    subscribeId: number = 0
+    device: deviceManager.DeviceInfo = {}
+  }
+
+  subscribeId: number, device: DeviceInfo
   try {
-    dmInstance.on('deviceFound', (data) => {
+    dmInstance.on('deviceFound', (data: Data) => {
       console.info("deviceFound:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceFound errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceFound errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1222,13 +1484,22 @@ off(type: 'deviceFound', callback?: Callback&lt;{ subscribeId: number, device: D
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedHardware.deviceManager';
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    subscribeId: number = 0
+    device: deviceManager.DeviceInfo = {}
+  }
+
   try {
-    dmInstance.off('deviceFound', (data) => {
+    dmInstance.off('deviceFound', (data: Data) => {
       console.info('deviceFound' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceFound errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceFound errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1251,13 +1522,21 @@ on(type: 'discoverFail', callback: Callback&lt;{ subscribeId: number, reason: nu
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    subscribeId: number = 0
+    reason: number = 0
+  }
+
   try {
-    dmInstance.on('discoverFail', (data) => {
+    dmInstance.on('discoverFail', (data: Data) => {
         console.info("discoverFail on:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("discoverFail errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("discoverFail errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1280,13 +1559,21 @@ off(type: 'discoverFail', callback?: Callback&lt;{ subscribeId: number, reason:
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    subscribeId: number = 0
+    reason: number = 0
+  }
+
   try {
-    dmInstance.off('discoverFail', (data) => {
+    dmInstance.off('discoverFail', (data: Data) => {
       console.info('discoverFail' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("discoverFail errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("discoverFail errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1310,13 +1597,20 @@ on(type: 'publishSuccess', callback: Callback&lt;{ publishId: number }&gt;): voi
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    publishId: number = 0
+  }
+
   try {
-    dmInstance.on('publishSuccess', (data) => {
+    dmInstance.on('publishSuccess', (data: Data) => {
       console.info("publishSuccess:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("publishSuccess errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("publishSuccess errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1339,13 +1633,20 @@ off(type: 'publishSuccess', callback?: Callback&lt;{ publishId: number }&gt;): v
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    publishId: number = 0
+  }
+
   try {
-    dmInstance.off('publishSuccess', (data) => {
+    dmInstance.off('publishSuccess', (data: Data) => {
       console.info('publishSuccess' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("publishSuccess errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("publishSuccess errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1368,13 +1669,21 @@ on(type: 'publishFail', callback: Callback&lt;{ publishId: number, reason: numbe
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    publishId: number = 0
+    reason: number = 0
+  }
+
   try {
-    dmInstance.on('publishFail', (data) => {
+    dmInstance.on('publishFail', (data: Data) => {
       console.info("publishFail on:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("publishFail errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("publishFail errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1397,13 +1706,21 @@ off(type: 'publishFail', callback?: Callback&lt;{ publishId: number, reason: num
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    publishId: number = 0
+    reason: number = 0
+  }
+
   try {
-    dmInstance.off('publishFail', (data) => {
+    dmInstance.off('publishFail', (data: Data) => {
       console.info('publishFail' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("publishFail errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("publishFail errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1426,13 +1743,16 @@ on(type: 'serviceDie', callback: () =&gt; void): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.on("serviceDie", () => {
       console.info("serviceDie on");
     });
   } catch (err) {
-    console.error("serviceDie errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("serviceDie errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -1455,12 +1775,15 @@ off(type: 'serviceDie', callback?: () =&gt; void): void
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.off("serviceDie", () => {
       console.info("serviceDie off");
     });
   } catch (err) {
-    console.error("serviceDie errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("serviceDie errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
\ No newline at end of file

zh-cn/application-dev/reference/apis/js-apis-distributedDeviceManager.md

@@ -18,7 +18,7 @@
 
 ## 导入模块
 
-```js
+```ts
 import deviceManager from '@ohos.distributedDeviceManager';
 ```
 
@@ -45,11 +45,15 @@ createDeviceManager(bundleName: string): DeviceManager;
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
   try {
     let dmInstance = deviceManager.createDeviceManager("ohos.samples.jshelloworld");
   } catch(err) {
-    console.error("createDeviceManager errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("createDeviceManager errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -79,11 +83,14 @@ releaseDeviceManager(deviceManager: DeviceManager): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     deviceManager.releaseDeviceManager(dmInstance);
   } catch (err) {
-    console.error("release device manager errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("release device manager errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -143,11 +150,15 @@ getAvailableDeviceListSync(): Array<DeviceBasicInfo>;
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceInfoList = dmInstance.getAvailableDeviceListSync();
+    let deviceInfoList: Array<deviceManager.eviceBasicInfo> = dmInstance.getAvailableDeviceListSync();
   } catch (err) {
-    console.error("getAvailableDeviceListSync errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getAvailableDeviceListSync errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -177,9 +188,12 @@ getAvailableDeviceList(callback:AsyncCallback&lt;Array&lt;DeviceBasicInfo&gt;&gt
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
   try {
-    dmInstance.getAvailableDeviceList((err, data) => {
+    dmInstance.getAvailableDeviceList((err: BusinessError, data: Array<deviceManager.DeviceBasicInfo>) => {
       if (err) {
         console.error("getAvailableDeviceList errCode:" + err.code + ",errMessage:" + err.message);
         return;
@@ -187,7 +201,8 @@ getAvailableDeviceList(callback:AsyncCallback&lt;Array&lt;DeviceBasicInfo&gt;&gt
       console.log('get available device info: ' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("getAvailableDeviceList errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getAvailableDeviceList errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -217,10 +232,13 @@ getAvailableDeviceList(): Promise&lt;Array&lt;DeviceBasicInfo&gt;&gt;;
 
 **示例：**
 
-  ```js
-  dmInstance.getAvailableDeviceList().then((data) => {
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
+  dmInstance.getAvailableDeviceList().then((data: Array<deviceManager.DeviceBasicInfo>) => {
     console.log('get available device info: ' + JSON.stringify(data));
-    }).catch((err) => {
+    }).catch((err: BusinessError) => {
       console.error("getAvailableDeviceList errCode:" + err.code + ",errMessage:" + err.message);
   });
   ```
@@ -251,12 +269,15 @@ getLocalDeviceNetworkId(): string;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceNetworkId = dmInstance.getLocalDeviceNetworkId();
+    let deviceNetworkId: string = dmInstance.getLocalDeviceNetworkId();
     console.log('local device networkId: ' + JSON.stringify(deviceNetworkId));
   } catch (err) {
-    console.error("getLocalDeviceNetworkId errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getLocalDeviceNetworkId errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -286,12 +307,15 @@ getLocalDeviceName(): string;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceName = dmInstance.getLocalDeviceName();
+    let deviceName: string = dmInstance.getLocalDeviceName();
     console.log('local device name: ' + JSON.stringify(deviceName));
   } catch (err) {
-    console.error("getLocalDeviceName errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getLocalDeviceName errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -321,12 +345,15 @@ getLocalDeviceType(): number;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceType = dmInstance.getLocalDeviceType();
+    let deviceType: number = dmInstance.getLocalDeviceType();
     console.log('local device type: ' + JSON.stringify(deviceType));
   } catch (err) {
-    console.error("getLocalDeviceType errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getLocalDeviceType errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -356,12 +383,15 @@ getLocalDeviceId(): string;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceId = dmInstance.getLocalDeviceId();
+    let deviceId: string = dmInstance.getLocalDeviceId();
     console.log('local device id: ' + JSON.stringify(deviceId));
   } catch (err) {
-    console.error("getLocalDeviceId errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getLocalDeviceId errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -397,14 +427,17 @@ getDeviceName(networkId: string): string;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     // 设备网络标识，可以从可信设备列表中获取
     let networkId = "xxxxxxx"
-    var deviceName = dmInstance.getDeviceName(networkId);
+    let deviceName: string = dmInstance.getDeviceName(networkId);
     console.log('device name: ' + JSON.stringify(deviceName)); 
   } catch (err) {
-    console.error("getDeviceName errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getDeviceName errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -440,14 +473,17 @@ getDeviceType(networkId: string): number;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     // 设备网络标识，可以从可信设备列表中获取
     let networkId = "xxxxxxx"
-    var deviceType = dmInstance.getDeviceType(networkId);
+    let deviceType: number = dmInstance.getDeviceType(networkId);
     console.log('device type: ' + JSON.stringify(deviceType)); 
   } catch (err) {
-    console.error("getDeviceType errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("getDeviceType errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -479,20 +515,36 @@ startDiscovering(discoverParam: {[key:&nbsp;string]:&nbsp;Object} , filterOption
 
 **示例：**
 
-  ```js
-  var discoverParam = {
-    'discoverTargetType': 1
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  interface DiscoverParam {
+    discoverTargetType: number
+  }
+
+  interface FilterOptions {
+    availableStatus: number,
+    discoverDistance: number,
+    authenticationStatus: number,
+    authorizationType: number
+  }
+
+  let discoverParam: DiscoverParam = {
+    discoverTargetType: 1
   };
-  var filterOptions = {
-    'availableStatus': 1,
-    'discoverDistance': 50,
-    'authenticationStatus': 0,
-    'authorizationType': 0
+
+  let filterOptions: FilterOptions = {
+    availableStatus: 1,
+    discoverDistance: 50,
+    authenticationStatus: 0,
+    authorizationType: 0
   };
+
   try {
     dmInstance.startDiscovering(discoverParam, filterOptions); // 当有设备发现时，通过discoverSuccess回调通知给应用程序
   } catch (err) {
-    console.error("startDiscovering errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("startDiscovering errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -517,11 +569,14 @@ stopDiscovering(): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.stopDiscovering();
   } catch (err) {
-    console.error("stopDiscovering errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("stopDiscovering errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -554,18 +609,32 @@ bindTarget(deviceId: string, bindParam: {[key:&nbsp;string]:&nbsp;Object} , call
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    deviceId: string = ""
+  }
+
+  interface BindParam {
+    bindType: number, // 认证类型： 1 - 无帐号PIN码认证
+    targetPkgName: string,
+    appName: string,
+    appOperation: string,
+    customDescription: string
+  }
+
   // 认证的设备信息，可以从发现的结果中获取
-  var deviceId ="XXXXXXXX";
-  let bindParam = {
-          'bindType': 1,// 认证类型： 1 - 无帐号PIN码认证
-          'targetPkgName': 'xxxx',
-          'appName': 'xxxx',
-          'appOperation': 'xxxx',
-          'customDescription': 'xxxx'
+  let deviceId = "XXXXXXXX";
+  let bindParam: BindParam = {
+    bindType: 1, // 认证类型： 1 - 无帐号PIN码认证
+    targetPkgName: 'xxxx',
+    appName: 'xxxx',
+    appOperation: 'xxxx',
+    customDescription: 'xxxx'
   }
   try {
-    dmInstance.bindTarget(deviceId, bindParam, (err, data) => {
+    dmInstance.bindTarget(deviceId, bindParam, (err: BusinessError, data: Data) => {
       if (err) {
           console.error("bindTarget errCode:" + err.code + ",errMessage:" + err.message);
           return;
@@ -573,7 +642,8 @@ bindTarget(deviceId: string, bindParam: {[key:&nbsp;string]:&nbsp;Object} , call
       console.info("bindTarget result:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("bindTarget errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("bindTarget errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -603,12 +673,15 @@ unbindTarget(deviceId: string): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
-    var deviceId ="XXXXXXXX";
+    let deviceId = "XXXXXXXX";
     dmInstance.unbindTarget(deviceId);
   } catch (err) {
-    console.error("unbindTarget errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("unbindTarget errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -633,7 +706,9 @@ replyUiAction(action: number, actionResult: string): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
  try {
     /*
       action = 0 - 允许授权
@@ -646,7 +721,8 @@ replyUiAction(action: number, actionResult: string): void;
     let operation = 0;
     dmInstance.replyUiAction(operation, "extra")
     } catch (err) {
-      console.error("replyUiAction errCode:" + err.code + ",errMessage:" + err.message);
+      let e: BusinessError = err as BusinessError;
+      console.error("replyUiAction errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -671,16 +747,27 @@ on(type: 'replyResult', callback: Callback&lt;{ param: string}&gt;): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    param: string = ""
+  }
+
+  interface TmpStr {
+    verifyFailed: boolean
+  }
+
   try {
-    dmInstance.on('replyResult', (data) => {
+    dmInstance.on('replyResult', (data: Data) => {
     console.log("replyResult executed, dialog closed" + JSON.stringify(data))
-    var tmpStr = JSON.parse(data.param)
-    var isShow = tmpStr.verifyFailed
+    let tmpStr: TmpStr = JSON.parse(data.param)
+    let isShow = tmpStr.verifyFailed
     console.log("replyResult executed, dialog closed" + isShow)
   });
   } catch (err) {
-    console.error("replyResult errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("replyResult errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -705,11 +792,14 @@ off(type: 'replyResult', callback?: Callback&lt;{ param: string}&gt;): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.off('replyResult');
   } catch (err) {
-    console.error("replyResult errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("replyResult errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -732,13 +822,22 @@ on(type: 'deviceStateChange', callback: Callback&lt;{ action: DeviceStateChange,
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    action: deviceManager.DeviceStateChange = 0
+    device: deviceManager.DeviceBasicInfo = {}
+  }
+
   try {
-    dmInstance.on('deviceStateChange', (data) => {
+    dmInstance.on('deviceStateChange', (data: Data) => {
       console.info("deviceStateChange on:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceStateChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceStateChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -761,13 +860,22 @@ off(type: 'deviceStateChange', callback?: Callback&lt;{ action: DeviceStateChang
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    action: deviceManager.DeviceStateChange = 0
+    device: deviceManager.DeviceBasicInfo = {}
+  }
+
   try {
-    dmInstance.off('deviceStatusChange', (data) => {
+    dmInstance.off('deviceStatusChange', (data: Data) => {
       console.info('deviceStatusChange' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceStatusChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceStatusChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -790,13 +898,21 @@ on(type: 'discoverSuccess', callback: Callback&lt;{ device: DeviceBasicInfo }&gt
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    device: deviceManager.DeviceBasicInfo = {}
+  }
+  
   try {
-    dmInstance.on('discoverSuccess', (data) => {
+    dmInstance.on('discoverSuccess', (data: Data) => {
       console.info("discoverSuccess:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("discoverSuccess errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("discoverSuccess errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -819,13 +935,21 @@ off(type: 'discoverSuccess', callback?: Callback&lt;{ device: DeviceBasicInfo }&
 
 **示例：**
 
-  ```js
+  ```ts
+  import deviceManager from '@ohos.distributedDeviceManager'
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    device: deviceManager.DeviceBasicInfo = {}
+  }
+
   try {
-    dmInstance.off('discoverSuccess', (data) => {
+    dmInstance.off('discoverSuccess', (data: Data) => {
       console.info('discoverSuccess' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("discoverSuccess errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("discoverSuccess errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -848,13 +972,20 @@ on(type: 'deviceNameChange', callback: Callback&lt;{ deviceName: string }&gt;):
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    deviceName: string = ""
+  }
+
   try {
-    dmInstance.on('deviceNameChange', (data) => {
+    dmInstance.on('deviceNameChange', (data: Data) => {
         console.info("deviceNameChange on:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceNameChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceNameChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -877,13 +1008,20 @@ off(type: 'deviceNameChange', callback?: Callback&lt;{ deviceName: string }&gt;)
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    deviceName: string = ""
+  }
+
   try {
-    dmInstance.off('deviceNameChange', (data) => {
+    dmInstance.off('deviceNameChange', (data: Data) => {
       console.info('deviceNameChange' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("deviceNameChange errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("deviceNameChange errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -906,13 +1044,20 @@ on(type: 'discoverFailure', callback: Callback&lt;{ reason: number }&gt;): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    reason: number = 0
+  }
+
   try {
-    dmInstance.on('discoverFailure', (data) => {
+    dmInstance.on('discoverFailure', (data: Data) => {
         console.info("discoverFailure on:" + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("discoverFailure errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("discoverFailure errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -935,13 +1080,20 @@ off(type: 'discoverFailure', callback?: Callback&lt;{ reason: number }&gt;): voi
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
+  class Data {
+    reason: number = 0
+  }
+
   try {
-    dmInstance.off('discoverFailure', (data) => {
+    dmInstance.off('discoverFailure', (data: Data) => {
       console.info('discoverFailure' + JSON.stringify(data));
     });
   } catch (err) {
-    console.error("discoverFailure errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("discoverFailure errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -964,13 +1116,16 @@ on(type: 'serviceDie', callback?: Callback&lt;{}&gt;): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.on("serviceDie", () => {
       console.info("serviceDie on");
     });
   } catch (err) {
-    console.error("serviceDie errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("serviceDie errCode:" + e.code + ",errMessage:" + e.message);
   }
   ```
 
@@ -993,13 +1148,15 @@ off(type: 'serviceDie', callback?: Callback&lt;{}&gt;): void;
 
 **示例：**
 
-  ```js
+  ```ts
+  import { BusinessError } from '@ohos.base'
+
   try {
     dmInstance.off("serviceDie", () => {
       console.info("serviceDie off");
     });
   } catch (err) {
-    console.error("serviceDie errCode:" + err.code + ",errMessage:" + err.message);
+    let e: BusinessError = err as BusinessError;
+    console.error("serviceDie errCode:" + e.code + ",errMessage:" + e.message);
   }
-  ```
-  
+  ```
\ No newline at end of file
\ No newline at end of file