1. 更新apt下载源

cd /etc/apt/&& cp sources.list sources.list.bk&& echo deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free > sources.list&& echo deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free >> sources.list&& echo deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free >> sources.list&& echo deb https://mirrors.tuna.tsinghua.edu.cn/debian-security/ buster/updates main contrib non-free >> sources.list&& echo deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free >> sources.list&& echo deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free >> sources.list&& echo deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free >> sources.list&& echo deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security/ buster/updates main contrib non-free >> sources.list&& apt update&& echo 换源已完成！&& cd /home

2. 安装依赖
   apt-get install -y build-essential libssl-dev zlib1g-dev libbz2-dev \libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \xz-utils tk-dev libffi-dev liblzma-dev python-openssl git

3. 按照顺序执行

git clone git://github.com/yyuu/pyenv.git ~/.pyenv
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
exec $SHELL -l