有这么一个场景，你正在feat-create分支上开发一个功能模块，突然临时有一个紧急Bug需要修复，但是你正在开发的程序预计还有一天才能写完，而修复这个Bug只需要五分钟。这个时候git的stash功能就派上用场了。
stash命令表示储藏，就是把当前的工作先储藏起来，去干别的工作，完成后在取出之前储藏的工作继续工作。
看看文档
NAME
git-stash - Stash the changes in a dirty working directory away
SYNOPSIS
git stash list [<options>]
git stash show [<stash>]
git stash drop [-q|--quiet] [<stash>]
git stash ( pop | apply ) [--index] [-q|--quiet] [<stash>]
git stash branch <branchname> [<stash>]
git stash save [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]
[-u|--include-untracked] [-a|--all] [<message>]
git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]
[-u|--include-untracked] [-a|--all] [-m|--message <message>]]
[--] [<pathspec>...]]
git stash clear
git stash create [<message>]
git stash store [-m|--message <message>] [-q|--quiet] <commit>
我们先储藏试一试，储藏特别简单，直接git stash即可
test1 git:feat-create ❯ git stash ✹
Saved working directory and index state WIP on feat-create: f869af5 first
然后，我们可以使用git stash list查看储藏里有什么东西
git stash list
stash@{0}: WIP on feat-create: f869af5 first
(END)
我们看见了有一条储藏记录f869af5，然后我们checkout到master分支，然后在master分支上新创建一个分支，开始修复Bug
test1 git:feat-create ❯ git checkout master
Switched to branch 'master'
Your branch is up-to-date with 'origin/master'.
test1 git:master ❯ git checkout -b bug-202
Switched to a new branch 'bug-202'
修复完后，你需要合并回master并删除这个分支
test1 git:bug-202 ❯ git checkout master
Switched to branch 'master'
Your branch is up-to-date with 'origin/master'.
test1 git:master ❯ git merge --no-ff -m "merged bug fix 202" bug-202
Merge made by the 'recursive' strategy.
CHANGELOG.md | 1 +
1 file changed, 1 insertion(+)
create mode 100644 CHANGELOG.md
然后，你需要取回之前的工作状态继续工作，取回命令git stash pop
test1 git:master ❯ git checkout feat-create
Switched to branch 'feat-create'
test1 git:feat-create ❯ git stash pop
On branch feat-create
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git checkout -- <file>..." to discard changes in working directory)
modified: README.md
no changes added to commit (use "git add" and/or "git commit -a")
Dropped refs/stash@{0} (64b7703801a621b33836293c55fd08f8c4372173)
现在代码已恢复到之前的状态了，可以继续之前的工作了
