diff --git a/.gitmodules b/.gitmodules
index d3bb5b8..07243d4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "project"]
 	path = project
 	url = http://123.207.52.103:3000/LiZongdi/project.git
+[submodule "project_old"]
+	path = project_old
+	url = http://123.207.52.103:3000/LiZongdi/project_old.git
diff --git a/project_old b/project_old
new file mode 160000
index 0000000..63e4150
--- /dev/null
+++ b/project_old
@@ -0,0 +1 @@
+Subproject commit 63e4150140333db80803088c1c56b01be5a9b994