diff --git a/src/chapter_3/chapter_3_16_4.md b/src/chapter_3/chapter_3_16_4.md
index 663c90e..cdca4ee 100644
--- a/src/chapter_3/chapter_3_16_4.md
+++ b/src/chapter_3/chapter_3_16_4.md
@@ -19,4 +19,4 @@ fn main() {
 ```
 
 运行该代码，会有如下结果：
-![注释](../../assets/23.png)
+![注释](../../assets/24.png)