从零创建一个Git项目
从命令行创建一个仓库
echo "# XXXXXX" >> README.md
git init
git add README.md
git commit -m "first commit"
git remote add origin https://xxxxxxxxx.git
git push -u origin master
从命令行推送已经创建的仓库
git remote add origin https://xxxxxxxx.git
git push -u origin master
