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 bbce012cc96d593c35ca9bcfb500c4dd8730dd8b..1a52f5b1fd5c53f4d5356a5f29218a6ae1d6fab6 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-fileio.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-fileio.md
@@ -598,7 +598,7 @@ openSync(path:string, flags?:number, mode?:number): number
 
 **示例：**
   ```js
-  let fd = fileio.openSync(path);
+  let fd = fileio.openSync(path, 0o102, 0o640);
   ```