下載安裝文件，解壓，進入目錄
1、編譯
./configure --prefix=/usr/local/python3
2、安裝
make
make insatll
3、安裝依賴
yum -y install zlib*
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel
sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
yum install libffi-devel -y
4、創建軟鏈接
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3