diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-storage.md b/zh-cn/application-dev/reference/apis/js-apis-data-storage.md
index 8e69477f9a68ac806bcf27605d5fcc86c3e7b1fc..3d3029b2bd8249afc5444352ea745d5632c4494e 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-storage.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-storage.md
@@ -156,7 +156,7 @@ deleteStorageSync(path: string): void
   | path | string | 是 | 应用程序内部数据存储路径。 |
 
 **示例：**
-  ```
+  ```js
   dataStorage.deleteStorageSync(path + '/mystore')
   ```