diff --git a/zh-cn/application-dev/reference/arkui-ts/ts-container-flex.md b/zh-cn/application-dev/reference/arkui-ts/ts-container-flex.md
index 54e5d47d4af3c66fa2c4fd8a866efa60144e8b9c..59b88849e37030934c4589738e0918c23040d5f3 100644
--- a/zh-cn/application-dev/reference/arkui-ts/ts-container-flex.md
+++ b/zh-cn/application-dev/reference/arkui-ts/ts-container-flex.md
@@ -143,7 +143,7 @@ struct FlexExample2 {
 }
 ```
 
-![zh-cn_image_0000001174264366](figures/zh-cn_image_0000001174264366.PNG)
+![zh-cn_image_0000001174264366](figures/zh-cn_image_0000001174264366.png)
 
 ```ts
 // xxx.ets