diff --git a/other/download.md b/other/download.md
index 4c52b0b8..d7f6c5ef 100644
--- a/other/download.md
+++ b/other/download.md
@@ -37,9 +37,9 @@
 
 # 编码实践
 
-<a href="https://pan.baidu.com/s/1H1ilY54BISk7oDaKYpcrwA"> <img src="s1495029.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1pWGwRRVxtpSmlsK7B1uU7Q"> <img src="s4157180.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1HGHeahqtscz7iczhK7ps-Q"> <img src="s1671095.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/14uxNIdeXKLOnUJ6LMRndPg"> <img src="s10328621.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/17sIRZxCf_uJMZNnqAHEDkA"> <img src="s11194203.jpg" width="130"/> </a>  &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1MaNeNsoqlTMn2uuT1QrsHQ"> <img src="s1086045.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1s0vhcWxN_36PpZeJoOHrKA"> <img src="s4669554.jpg" width="130"/> </a>
+<a href="https://pan.baidu.com/s/1H1ilY54BISk7oDaKYpcrwA"> <img src="s1495029.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1pWGwRRVxtpSmlsK7B1uU7Q"> <img src="s4157180.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1HGHeahqtscz7iczhK7ps-Q"> <img src="s1671095.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/14uxNIdeXKLOnUJ6LMRndPg"> <img src="s10328621.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/17sIRZxCf_uJMZNnqAHEDkA"> <img src="s11194203.jpg" width="130"/> </a>  &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1MaNeNsoqlTMn2uuT1QrsHQ"> <img src="s1086045.jpg" width="130"/> </a> &nbsp;&nbsp; 
 
 # 科普
 
-<a href="https://pan.baidu.com/s/1fKo7ntvQUettvjaTQqyCEw"> <img src="s1113106.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1dNFZcBdDhA80-pWT1qcQSg"> <img src="s9114855.jpg" width="130"/> </a> &nbsp;&nbsp;  &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1fII84UPuo8aIxDkOakvUVg"> <img src="s4379914.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1XarJowXrxoBtKdmVCGcm1w"> <img src="s4687321.jpg" width="130"/> </a> 
+<a href="https://pan.baidu.com/s/1fKo7ntvQUettvjaTQqyCEw"> <img src="s1113106.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1dNFZcBdDhA80-pWT1qcQSg"> <img src="s9114855.jpg" width="130"/> </a> &nbsp;&nbsp;  &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1fII84UPuo8aIxDkOakvUVg"> <img src="s4379914.jpg" width="130"/> </a> &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1XarJowXrxoBtKdmVCGcm1w"> <img src="s4687321.jpg" width="130"/> </a>  &nbsp;&nbsp; <a href="https://pan.baidu.com/s/1s0vhcWxN_36PpZeJoOHrKA"> <img src="s4669554.jpg" width="130"/> </a>