参考文章
复杂点的参考
试了一圈发现，git库的用法设置非常符合原生git命令，只不过之间加了个 . 而已。
比如原本命令行里是 git add . ，这里就是 repo.git.add('.') ，
原本是 git commit -m "信息" ，这里就是 repo.git.commit(m='信息')
可以说减少了很多学习时间，基本上我很多都是没参考文档自己猜出来的也能用。
库安装好后可以直接在python中用了。
文件夹地址可以是全路径，也可以是 . 当前文件夹、 ../ 上级文件夹等用法。
下面是一种解决方案
1 把gitbash 的路径放到系统的Path环境变量里 我的是 C:\Program Files (x86)\Git\bin
2 这时候 你在系统命令行里就可以用git了
3 在python里倒入 os 模块 然后执行
os.system('git') 就可以了
C:\Users\Administrator>pythonPython 2.7.8 (default, Jun 30 2014, 16:08:48) [MSC v.1500 64 bit (AMD64)] on win3
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.system('git')
usage: git [--version] [--help] [-C <path>] [-c name=value]
[--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]
[-p|--paginate|--no-pager] [--no-replace-objects] [--bare]
[--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]
<command> [<args>]
The most commonly used git commands are:
add Add file contents to the index
bisect Find by binary search the change that introduced a bug
branch List, create, or delete branches
checkout Checkout a branch or paths to the working tree
clone Clone a repository into a new directory
commit Record changes to the repository
diff Show changes between commits, commit and working tree, etc
fetch Download objects and refs from another repository
grep Print lines matching a pattern
init Create an empty Git repository or reinitialize an existing one
log Show commit logs
merge Join two or more development histories together
mv Move or rename a file, a directory, or a symlink
pull Fetch from and integrate with another repository or a local branch
push Update remote refs along with associated objects
rebase Forward-port local commits to the updated upstream head
reset Reset current HEAD to the specified state
rm Remove files from the working tree and from the index
show Show various types of objects
status Show the working tree status
tag Create, list, delete or verify a tag object signed with GPG
'git help -a' and 'git help -g' lists available subcommands and some
concept guides. See 'git help <command>' or 'git help <concept>'
to read about a specific subcommand or concept.
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