diff --git a/map.html b/map.html
index d48e9f0..735b443 100644
--- a/map.html
+++ b/map.html
@@ -203,6 +203,7 @@ <h2 style="font-size:40px;">庞玺桐的博客的导览页面</h2>
               	  <li>图片水平切割<a href="./blog/tool/CutPhoto.html"target="_blank">./CutPhoto.html</a></li>
               	  <li>联欢会抽签<a href="./blog/tool/random_badluck.html"target="_blank">./random_badluck.html</a></li>
               	  <li>网页导览<a href="./blog/tool/map.html"target="_blank">./map.html</a></li>
+              	  <li>随机数<a href="./blog/tool/random_number.html"target="_blank">./random_number.html</a></li>
                 </ul>
               <li>页面<a href="./blog/more.html"target="_blank">./page</a></li>
                 <ul>