diff --git a/convex_hull.html b/convex_hull.html
index b9f6de1..249d3ed 100644
--- a/convex_hull.html
+++ b/convex_hull.html
@@ -4,6 +4,7 @@
     <title>凸包算法</title>
 </head>
 <body>
+    <a href="https://git.kuraa.cc/kura/convex_hull">git源码</a>
     <textarea style="width: 100%;height: 100px;" id="points" placeholder="输入点，格式：x1,y1;x2,y2;x3,y3;..."></textarea>
     <button onclick="convex_hull()">计算凸包</button>
     <button onclick="randomPointsToTextarea(30)">随机30点</button>
