diff --git a/zh-cn/application-dev/ability/stage-ability.md b/zh-cn/application-dev/ability/stage-ability.md
index 660c3016acc0849e665cc6609fa109421731446f..bdc1796d655a68f3fef1b05f0ef3675642bc1ae6 100644
--- a/zh-cn/application-dev/ability/stage-ability.md
+++ b/zh-cn/application-dev/ability/stage-ability.md
@@ -51,16 +51,16 @@ Ability类拥有context属性，context属性为AbilityContext类，AbilityConte
 **表3** AbilityContext API接口功能介绍
 |接口名|描述|
 |:------|:------|
-|void startAbility(want: Want, callback: AsyncCallback<void>)|启动Ability。|
-|void startAbility(want: Want, options: StartOptions, callback: AsyncCallback<void>)|启动Ability。|
-|void startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback<void>)|带AccountId启动Ability。|
-|void startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, callback: AsyncCallback<void>)|带AccountId启动Ability。|
-|void startAbilityForResult(want: Want, callback: AsyncCallback<AbilityResult>)|带返回结果启动Ability。|
-|void startAbilityForResult(want: Want, options: StartOptions, callback: AsyncCallback<AbilityResult>)|带返回结果启动Ability。|
-|void startAbilityForResultWithAccount(want: Want, accountId: number, callback: AsyncCallback<AbilityResult>)|带返回结果及AccountId启动Ability。|
-|void startAbilityForResultWithAccount(want: Want, accountId: number, options: StartOptions, callback: AsyncCallback<void>)|带返回结果及AccountId启动Ability。|
-|void terminateSelf(callback: AsyncCallback<void>)|销毁当前的Page Ability。|
-|void terminateSelfWithResult(parameter: AbilityResult, callback: AsyncCallback<void>)|带返回结果销毁当前的Page Ability。|
+|void startAbility(want: Want, callback: AsyncCallback\<void>)|启动Ability。|
+|void startAbility(want: Want, options: StartOptions, callback: AsyncCallback\<void>)|启动Ability。|
+|void startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback\<void>)|带AccountId启动Ability。|
+|void startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, callback: AsyncCallback\<void>)|带AccountId启动Ability。|
+|void startAbilityForResult(want: Want, callback: AsyncCallback\<AbilityResult>)|带返回结果启动Ability。|
+|void startAbilityForResult(want: Want, options: StartOptions, callback: AsyncCallback\<AbilityResult>)|带返回结果启动Ability。|
+|void startAbilityForResultWithAccount(want: Want, accountId: number, callback: AsyncCallback\<AbilityResult>)|带返回结果及AccountId启动Ability。|
+|void startAbilityForResultWithAccount(want: Want, accountId: number, options: StartOptions, callback: AsyncCallback\<void>)|带返回结果及AccountId启动Ability。|
+|void terminateSelf(callback: AsyncCallback\<void>)|销毁当前的Page Ability。|
+|void terminateSelfWithResult(parameter: AbilityResult, callback: AsyncCallback\<void>)|带返回结果销毁当前的Page Ability。|
 
 ## 开发步骤
 ### 创建Page Ability应用
@@ -100,7 +100,7 @@ Ability类拥有context属性，context属性为AbilityContext类，AbilityConte
         windowStage.loadContent("pages/index").then((data) => {
             console.log("MainAbility load content succeed with data: " + JSON.stringify(data))
         }).catch((error) => {
-            console.error("MainAbility load content failed with error: "+ JSON.stringify(error))
+            console.error("MainAbility load content failed with error: " + JSON.stringify(error))
         })
     }
 
@@ -189,7 +189,7 @@ var want = {
 context.startAbility(want).then((data) => {
     console.log("Succeed to start remote ability with data: " + JSON.stringify(data))
 }).catch((error) => {
-    console.error("Failed to start remote ability with error: "+ JSON.stringify(error))
+    console.error("Failed to start remote ability with error: " + JSON.stringify(error))
 })
 ```
 从DeviceManager获取指定设备的deviceId。具体示例代码如下：
@@ -225,9 +225,9 @@ module.json的修改：
 let context = this.context
 let permissions: Array<string> = ['ohos.permission.READ_CALENDAR']
 context.requestPermissionsFromUser(permissions).then((data) => {
-    console.log("Succeed to request permission from user with data: "+ JSON.stringify(data))
+    console.log("Succeed to request permission from user with data: " + JSON.stringify(data))
 }).catch((error) => {
-    console.log("Failed to request permission from user with error: "+ JSON.stringify(error))
+    console.log("Failed to request permission from user with error: " + JSON.stringify(error))
 })
 ```
 在跨设备场景下，需要向用户申请数据同步的权限。具体示例代码如下：
@@ -235,9 +235,9 @@ context.requestPermissionsFromUser(permissions).then((data) => {
 let context = this.context
 let permissions: Array<string> = ['ohos.permission.DISTRIBUTED_DATASYNC']
 context.requestPermissionsFromUser(permissions).then((data) => {
-    console.log("Succeed to request permission from user with data: "+ JSON.stringify(data))
+    console.log("Succeed to request permission from user with data: " + JSON.stringify(data))
 }).catch((error) => {
-    console.log("Failed to request permission from user with error: "+ JSON.stringify(error))
+    console.log("Failed to request permission from user with error: " + JSON.stringify(error))
 })
 ```