!20885 update msdp dos

Merge pull request !20885 from 李博/0714

en/application-dev/reference/apis/js-apis-stationary.md

@@ -123,7 +123,7 @@ Unsubscribes from the device status.
 | -------------------- | -------------------------------------------------- | ---- | ---------------------------- |
 | activity  | [ActivityType](#activitytype)  | Yes  | Device status type.             |
 | event  | [ActivityEvent](#activityevent)  | Yes  | Event type.             |
-| callback | Callback<[ActivityResponse](#activityresponse)\>  | No  | Callback used to receive reported data. If this parameter is not passed, all callbacks associated with the specified event in the process will be unregistered. |
+| callback | Callback:\<[ActivityResponse](#activityresponse)>  | No  | Callback used to receive reported data. |
 
 **Example**
 

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

@@ -123,7 +123,7 @@ off(activity: ActivityType, event: ActivityEvent, callback?: Callback<Activit
 | -------------------- | -------------------------------------------------- | ---- | ---------------------------- |
 | activity  | [ActivityType](#activitytype)  | 是   | 设备状态能力类型。              |
 | event  | [ActivityEvent](#activityevent)  | 是   | 事件类型。              |
-| callback             | Callback<[ActivityResponse](#activityresponse)\>  | 否   | 回调函数，接收上报状态变化事件，如果没有传递callback参数，会移除该进程下订阅该类型得所有callback。    |
+| callback             | Callback：\<[ActivityResponse](#activityresponse)>  | 否   | 回调函数，接收上报状态变化事件。    |
 
 **示例：**