diff --git a/zh-cn/application-dev/reference/apis/js-apis-net-policy.md b/zh-cn/application-dev/reference/apis/js-apis-net-policy.md
index 48ac1c115d1f77fcf6ad18a4e42dae9ea7ecf3fb..f39fb30dbc853ff3cd36a4639be7f52bab612c2a 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-net-policy.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-net-policy.md
@@ -89,9 +89,11 @@ setBackgroundAllowed(isAllowed: boolean): Promise\<void>
 **示例：**
 
 ```js
-policy.setBackgroundAllowed(true).then(function (error) {
-  console.log(JSON.stringify(error))
-})
+policy.setBackgroundAllowed(true).then(() => {
+  console.log("setBackgroundAllowed success");
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.isBackgroundAllowed<sup>10+</sup>
@@ -164,10 +166,11 @@ isBackgroundAllowed(): Promise\<boolean>;
 **示例：**
 
 ```js
-policy.isBackgroundAllowed().then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.isBackgroundAllowed().then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.setPolicyByUid<sup>10+</sup>
@@ -248,9 +251,11 @@ setPolicyByUid(uid: number, policy: NetUidPolicy): Promise\<void>;
 **示例：**
 
 ```js
-policy.setPolicyByUid(11111, policy.NetUidPolicy.NET_POLICY_NONE).then(function (error) {
-  console.log(JSON.stringify(error))
-})
+policy.setPolicyByUid(11111, policy.NetUidPolicy.NET_POLICY_NONE).then(() => {
+  console.log("setPolicyByUid success");
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.getPolicyByUid<sup>10+</sup>
@@ -329,10 +334,11 @@ getPolicyByUid(uid: number): Promise\<NetUidPolicy>;
 **示例：**
 
 ```js
-policy.getPolicyByUid(11111).then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.getPolicyByUid(11111).then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.getUidsByPolicy<sup>10+</sup>
@@ -412,10 +418,11 @@ getUidsByPolicy(policy: NetUidPolicy): Promise\<Array\<number>>;
 **示例：**
 
 ```js
-policy.getUidsByPolicy(11111).then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.getUidsByPolicy(11111).then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.getNetQuotaPolicies<sup>10+</sup>
@@ -487,11 +494,11 @@ getNetQuotaPolicies(): Promise\<Array\<NetQuotaPolicy>>;
 **示例：**
 
 ```js
-policy.getNetQuotaPolicies().then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
-
+policy.getNetQuotaPolicies().then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.setNetQuotaPolicies<sup>10+</sup>
@@ -608,9 +615,11 @@ let netquotapolicy = {
 
 netQuotaPolicyList.push(netquotapolicy);
 
-policy.setNetQuotaPolicies(netQuotaPolicyList).then(function (error) {
-  console.log(JSON.stringify(error))
-})
+policy.setNetQuotaPolicies(netQuotaPolicyList).then(() => {
+  console.log("setNetQuotaPolicies success");
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.isUidNetAllowed<sup>10+</sup>
@@ -692,10 +701,11 @@ isUidNetAllowed(uid: number, isMetered: boolean): Promise\<boolean>;
 **示例：**
 
 ```js
-policy.isUidNetAllowed(11111, true).then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.isUidNetAllowed(11111, true).then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.isUidNetAllowed<sup>10+</sup>
@@ -777,10 +787,11 @@ isUidNetAllowed(uid: number, iface: string): Promise\<boolean>;
 **示例：**
 
 ```js
-policy.isUidNetAllowed(11111, 'wlan0').then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.isUidNetAllowed(11111, 'wlan0').then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.setDeviceIdleTrustlist<sup>10+</sup>
@@ -861,9 +872,11 @@ setDeviceIdleTrustlist(uids: Array\<number>, isAllowed: boolean): Promise\<void>
 **示例：**
 
 ```js
-policy.setDeviceIdleTrustlist([11111,22222], true).then(function (error) {
-  console.log(JSON.stringify(error))
-})
+policy.setDeviceIdleTrustlist([11111,22222], true).then(() => {
+  console.log("setDeviceIdleTrustlist success");
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.getDeviceIdleTrustlist<sup>10+</sup>
@@ -934,10 +947,11 @@ getDeviceIdleTrustlist(): Promise\<Array\<number>>;
 **示例：**
 
 ```js
-policy.getDeviceIdleTrustlist().then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.getDeviceIdleTrustlist().then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.getBackgroundPolicyByUid<sup>10+</sup>
@@ -1017,10 +1031,11 @@ getBackgroundPolicyByUid(uid: number): Promise\<NetBackgroundPolicy>;
 **示例：**
 
 ```js
-policy.getBackgroundPolicyByUid(11111).then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.getBackgroundPolicyByUid(11111).then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.resetPolicies<sup>10+</sup>
@@ -1099,9 +1114,11 @@ resetPolicies(simId: string): Promise\<void>;
 **示例：**
 
 ```js
-policy.resetPolicies('1').then(function (error) {
-  console.log(JSON.stringify(error))
-})
+policy.resetPolicies('1').then(() => {
+  console.log("resetPolicies success");
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.updateRemindPolicy<sup>10+</sup>
@@ -1186,9 +1203,11 @@ updateRemindPolicy(netType: NetBearType, simId: string, remindType: RemindType):
 
 ```js
 import connection from '@ohos.net.connection';
-policy.updateRemindPolicy(connection.NetBearType.BEARER_CELLULAR, '1', policy.RemindType.REMIND_TYPE_WARNING).then(function (error) {
-  console.log(JSON.stringify(error))
-})
+policy.updateRemindPolicy(connection.NetBearType.BEARER_CELLULAR, '1', policy.RemindType.REMIND_TYPE_WARNING).then(() => {
+  console.log("updateRemindPolicy success");
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.setPowerSaveTrustlist<sup>10+</sup>
@@ -1269,9 +1288,11 @@ setPowerSaveTrustlist(uids: Array\<number>, isAllowed: boolean): Promise\<void>;
 **示例：**
 
 ```js
-policy.setPowerSaveTrustlist([11111,22222], true).then(function (error) {
-  console.log(JSON.stringify(error))
-})
+policy.setPowerSaveTrustlist([11111,22222], true).then(() => {
+  console.log("setPowerSaveTrustlist success");
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.getPowerSaveTrustlist<sup>10+</sup>
@@ -1343,10 +1364,11 @@ getPowerSaveTrustlist(): Promise\<Array\<number>>;
 **示例：**
 
 ```js
-policy.getPowerSaveTrustlist().then(function (error, data) {
-  console.log(JSON.stringify(error))
-  console.log(JSON.stringify(data))
-})
+policy.getPowerSaveTrustlist().then((data) => {
+  console.log(JSON.stringify(data));
+}).catch(error => {
+  console.log(JSON.stringify(error));
+});
 ```
 
 ## policy.on