Signed-off-by: LVB8189 <lvbai1@huawei.com>

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Signed-off-by: LVB8189 <lvbai1@huawei.com>
Changes to be committed:
c702e6c6 · LVB8189 · a82145af · c702e6c6
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zh-cn/application-dev/reference/apis/js-apis-screen-lock.md zh-cn/application-dev/reference/apis/js-apis-screen-lock.md +6 -0

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--- a/zh-cn/application-dev/reference/apis/js-apis-screen-lock.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-screen-lock.md
@@ -289,6 +289,12 @@ unlock(): Promise&lt;boolean&gt;
  | -------- | -------- |
  | Promise&lt;void&gt; | 以Promise形式返回结果。 | 

+**错误信息**：
+
+  | 值 | 说明 | 
+  | -------- | -------- |
+  | 401 | 表示参数传入错误。 | 
+
 **示例**：
  
  ```js