diff --git a/PRODUCT_DOCS/test/test4.md b/PRODUCT_DOCS/test/test4.md
index 6eeff4bcee872937171fb3a1330cbd3392c1d258..991dc00b2890e54747b13ee08999dc1bb0eec330 100644
--- a/PRODUCT_DOCS/test/test4.md
+++ b/PRODUCT_DOCS/test/test4.md
@@ -36,6 +36,7 @@ ___粗斜体文字___
 
 ![相对路径](../assets/datop1.png)
 
+<center><img src="../assets/datop1.png" width = "150" height = "130" alt="哈哈哈"  /></center>
 
 
 * 第一项