clone
git clone git@github.com:marine0131/reposity_name
push
1.git add -A
2.git commit -m 'something want to say'
3.git push origin master
pull
1.git pull origin master
if local version have changed, commit have be done first
這個操作將拋棄本地版本，需要謹慎
1.git checkout . //注意checkout 后空格 加 “ . ”
2.git pull origin master
單獨撤銷一個文件的本地修改
git checkout -- file2
```
##check
git status
