diff --git a/other/download.md b/other/download.md
index 8a237ec0..7f78c872 100644
--- a/other/download.md
+++ b/other/download.md
@@ -1,7 +1,7 @@
 
 # 网络
 
-<a href="https://pan.baidu.com/s/1EXaJbNckzuQMOCyamzjL_Q"> <img src="s3296854.jpg" width="150"/> </a> &nbsp; <a href="https://pan.baidu.com/s/1M0AHXqG9sP9Bxne6u0JK8A"> <img src="s27283822.jpg" width="150"/> </a> <a href="https://pan.baidu.com/s/1y0P-VFlWKdOPW7YB60OWlw"> <img src="s26676928.jpg" width="150"/> </a> <a href="https://pan.baidu.com/s/1oBbA9LOevcJ_reg8y5kOvw"> <img src="s28845534.jpg" width="150"/> </a>
+<a href="https://pan.baidu.com/s/1EXaJbNckzuQMOCyamzjL_Q"> <img src="s3296854.jpg" width="150"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1M0AHXqG9sP9Bxne6u0JK8A"> <img src="s27283822.jpg" width="150"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1y0P-VFlWKdOPW7YB60OWlw"> <img src="s26676928.jpg" width="150"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1oBbA9LOevcJ_reg8y5kOvw"> <img src="s28845534.jpg" width="150"/> </a>
 
 # 操作系统