1、安装python3相关命令。
mkdir -p /usr/local/python3
cd /usr/local/python3
wget https://www.python.org/ftp/python/3.7.2/Python-3.7.2.tgz
tar -zxvf Python-3.7.2.tgz
cd Python-3.7.2
./configure --enable-optimizations # bash ./configure --prefix=/usr/local/python3
make && make installmkdir -p /usr/lo
