一.安装准备
1.安装python3编译环境
yum -y install libffi-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel xz-devel gcc make
2.下载python包
wget https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tgz
二.开始安装
1.解压包：tar zxvf Python-3.8.5.tgz
2.cd Python-3.8.5
3../configure --prefix=/usr/local/python3.8.5
4.make && make install
5.ln -s /usr/local/python3.8.5/bin/python3.8 /usr/bin/python3
6.检查运行
