diff --git a/notes/2.6-git_statsh.md b/notes/2.6-git_statsh.md
deleted file mode 100644
index 0da3151..0000000
--- a/notes/2.6-git_statsh.md
+++ /dev/null
@@ -1,34 +0,0 @@
-## 2.6
-
-### 2.6.1
-
-用来查看stash列表
-```bash
-git stash list
-```
-
-恢复进度
-```bash
-git stash pop
-```
-
-```bash
-git commit -m "message" # 执行提交
-git status -s # 查看状态
-```
-
-```bash
-git reset --soft HEAD^ #反悔提交 将HEAD指向当前提交的父提交
-git reset HEAD a/b/c # 将a/b/c目录下的文件撤出暂存区
-git reset 将所有的文件从stage中撤出
-```
-
-```bash
-git checkout -- welcome.txt # 清除welcome.txt的改动
-git clean -nd # 删除本地多余的目录和文件列表
-git clean -fd # 真正删除
-```
-
-
-
-
diff --git a/notes/2.7-git_basic_op.md b/notes/2.7-git_basic_op.md
new file mode 100644
index 0000000..93ef115
--- /dev/null
+++ b/notes/2.7-git_basic_op.md
@@ -0,0 +1,12 @@
+## 2.7 Git Basic Ops
+
+## 2.7.1 git tag
+
+给当前的进度打个标签
+```bash
+git tag -m "some message" <version-string>
+git describe # 查看标签
+```
+
+## 2.7.2 Git 删除文件
+git 
diff --git a/notes/a b/notes/a
index 1fe12d5..e150f30 100644
--- a/notes/a
+++ b/notes/a
@@ -1,2 +1,3 @@
 welcome
 1039
+1539