官方示例
git config --global user.name "sanqianll"
git config --global user.email "2240017707@qq.com"
创建git仓库：
mkdir 仓库名
cd 仓库名
git init
touch README.md
git add README.md
git commit -m "first commit"
git remote add origin https://......git
git push -u origin master
已有仓库？
cd existing_git_repo
git remote add origin https://gitee.com/xxx/xxx.git
git push -u origin master