diff --git a/zh-cn/application-dev/napi/purgeable-memory-guidelines.md b/zh-cn/application-dev/napi/purgeable-memory-guidelines.md
index 584b023fbd00c355c0a3177a3a2c73396968b46e..a2290acf11b24cb3f27ee44acdffe39e7e597b74 100644
--- a/zh-cn/application-dev/napi/purgeable-memory-guidelines.md
+++ b/zh-cn/application-dev/napi/purgeable-memory-guidelines.md
@@ -114,6 +114,4 @@
     ```c++
     // 销毁对象
     OH_PurgeableMemory_Destroy(pPurgmem);
-    ```
-
-## 相关实例
\ No newline at end of file
+    ```
\ No newline at end of file