diff --git a/zh-cn/application-dev/ability/stage-ability.md b/zh-cn/application-dev/ability/stage-ability.md
index 25d32c0a69d7cfb516e6ae784e07ca1efa7cb9c5..c3e76afd95ff26f0cfb6c379faa17f145fc8d4a0 100644
--- a/zh-cn/application-dev/ability/stage-ability.md
+++ b/zh-cn/application-dev/ability/stage-ability.md
@@ -210,14 +210,14 @@ 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|
 |:------|:------|
-|startAbility(want: Want, callback: AsyncCallback<void>): void|启动Ability。|
-|startAbility(want: Want, options?: StartOptions): Promise<void>|启动Ability。|
-|startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback<void>): void|带AccountId启动Ability。|
-|startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions): Promise<void>|带AccountId启动Ability。|
-|startAbilityForResult(want: Want, callback: AsyncCallback<AbilityResult>): void|带返回结果启动Ability。|
-|startAbilityForResult(want: Want, options?: StartOptions): Promise<AbilityResult>|带返回结果启动Ability。|
-|startAbilityForResultWithAccount(want: Want, accountId: number, callback: AsyncCallback<AbilityResult>): void|带返回结果及AccountId启动Ability。|
-|startAbilityForResultWithAccount(want: Want, accountId: number, options?: StartOptions): Promise<AbilityResult>|带返回结果及AccountId启动Ability。|
+|startAbility(want: Want, callback: AsyncCallback\<void>): void|启动Ability。|
+|startAbility(want: Want, options?: StartOptions): Promise\<void>|启动Ability。|
+|startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback\<void>): void|带AccountId启动Ability。|
+|startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions): Promise\<void>|带AccountId启动Ability。|
+|startAbilityForResult(want: Want, callback: AsyncCallback\<AbilityResult>): void|带返回结果启动Ability。|
+|startAbilityForResult(want: Want, options?: StartOptions): Promise\<AbilityResult>|带返回结果启动Ability。|
+|startAbilityForResultWithAccount(want: Want, accountId: number, callback: AsyncCallback\<AbilityResult>): void|带返回结果及AccountId启动Ability。|
+|startAbilityForResultWithAccount(want: Want, accountId: number, options?: StartOptions): Promise\<AbilityResult>|带返回结果及AccountId启动Ability。|
 ### 相同设备启动Ability
 应用可以通过`this.context`获取Ability实例的上下文，进而使用AbilityContext中的StartAbility相关接口启动Ability。启动Ability可指定Want、StartOptions、accountId，通过callback形式或promise形式实现。具体示例代码如下：
 ```ts
@@ -247,7 +247,7 @@ 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：
diff --git a/zh-cn/application-dev/ability/stage-call.md b/zh-cn/application-dev/ability/stage-call.md
index de0ea49f77f0bf61ffd77e99d6a4a45045160eb2..032dacf3309e77ed683d5de558144e42fea02e3a 100644
--- a/zh-cn/application-dev/ability/stage-call.md
+++ b/zh-cn/application-dev/ability/stage-call.md
@@ -18,11 +18,11 @@ Caller及Callee功能如下：具体的API详见[接口文档](../reference/apis
 **表1** Call API接口功能介绍
 |接口名|描述|
 |:------|:------|
-|startAbilityByCall(want: Want): Promise<Caller>|获取指定通用组件的Caller通信接口，拉起指定通用组件并将其切换到后台。|
+|startAbilityByCall(want: Want): Promise\<Caller>|获取指定通用组件的Caller通信接口，拉起指定通用组件并将其切换到后台。|
 |on(method: string, callback: CaleeCallBack): void|通用组件Callee注册method对应的callback方法。|
 |off(method: string): void|通用组件Callee去注册method的callback方法。|
-|call(method: string, data: rpc.Sequenceable): Promise<void>|向通用组件Callee发送约定序列化数据。|
-|callWithResult(method: string, data: rpc.Sequenceable): Promise<rpc.MessageParcel>|向通用组件Callee发送约定序列化数据, 并将返回的约定序列化数据带回。|
+|call(method: string, data: rpc.Sequenceable): Promise\<void>|向通用组件Callee发送约定序列化数据。|
+|callWithResult(method: string, data: rpc.Sequenceable): Promise\<rpc.MessageParcel>|向通用组件Callee发送约定序列化数据, 并将返回的约定序列化数据带回。|
 |release(): void|释放通用组件的Caller通信接口。|
 |onRelease(callback: OnReleaseCallBack): void|注册通用组件通信断开监听通知。|