diff --git a/Languages/git/基本使用.txt b/Languages/git/基本使用.txt
index f3e7dd2..a595fd7 100644
--- a/Languages/git/基本使用.txt
+++ b/Languages/git/基本使用.txt
@@ -1,2 +1,7 @@
 【1】删除远程分支：
-git push origin --delete dev
\ No newline at end of file
+git push origin --delete dev
+
+【2】删除submodule示例
+git submodule deinit googletest
+git rm googletest
+git commit -m "Remove googletest"