1.下載git
wget https://github.com/git/git/archive/v2.14.1.zip

2.安裝依賴
sudo yum -y install zlib-devel openssl-devel cpio expat-devel gettext-devel curl-devel perl-ExtUtils-CBuilder perl-ExtUtils-MakeMaker
安裝成功后的截圖

3.解壓git
unzip v2.14.1.zip

4.將git安裝到/usr/local上
先進入git文件夾
編譯
安裝
cd git-2.14.1
make prefix=/usr/local all
make prefix=/usr/local install
5.驗證是否安裝完成
git --version

6.生成ssh密鑰
ssh-keygen -t rsa -C "lonecloudmac@icloud.com"
7.查看ssh公鑰
cat ~/.ssh/id_rsa.pub
8.將密碼復制到碼雲/github上面
9.下載代碼
git clone git@git.oschina.net:lonecloud/qrcode.git
10.可以正常下載則說明是正確的
