diff --git a/_Sidebar.md b/_Sidebar.md
index 2964a91..d98c483 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -1 +1,3 @@
+[首页](首页)
+
 [应用系统的设计与升级](应用系统的设计与升级)
\ No newline at end of file