diff --git a/zh-cn/application-dev/reference/apis/js-apis-fileio.md b/zh-cn/application-dev/reference/apis/js-apis-fileio.md
index 59a49d7fac2fe24536805b92bec6adce7d269906..f464586959af3e779ed74aab3e024953f452e813 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-fileio.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-fileio.md
@@ -595,7 +595,7 @@ openSync(path:string, flags?:number, mode?:number): number
 
 **示例：**
   ```js
-  let fd = fileio.openSync(path);
+  let fd = fileio.openSync(path, 0o102, 0o640);
   ```