diff --git a/other/download.md b/other/download.md
index be1e2114..53f8b9d1 100644
--- a/other/download.md
+++ b/other/download.md
@@ -12,7 +12,7 @@
 
 # 算法
 
-<a href="https://pan.baidu.com/s/1Va1R66d13ynmita8nfkRPg"> <img src="s8938479.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1HmGwXvTcHDrQnUAL1wWE3g"> <img src="s7038106.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1SZGUbvKpKOomM-iYxe_GGw"> <img src="s2992671.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/10EoXyW33MnYJUX5YeD5pPg"> <img src="s28313721.jpg" width="130"/> </a>
+<a href="https://pan.baidu.com/s/1Va1R66d13ynmita8nfkRPg"> <img src="s28322244.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1HmGwXvTcHDrQnUAL1wWE3g"> <img src="s7038106.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1SZGUbvKpKOomM-iYxe_GGw"> <img src="s2992671.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/10EoXyW33MnYJUX5YeD5pPg"> <img src="s28313721.jpg" width="130"/> </a>
 
 # 设计模式