1. wget https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.25.0.tar.gz 源码安装
2. tar -zxvf ./git-2.25.0.tar.gz -C /opt 解压到指定目录
3. yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel 安装需要用到的依赖
4. make prefix=/usr/local/git all 进入到解压的根目录执行编译
5. make prefix=/usr/local/git install 执行安装，git会安装到/usr/local/git下
6. ln -sf /usr/local/git/bin/git /usr/bin 添加软链接且覆盖已存在同名
7. git --version 查看git版本
