安装方案一：
cd /root
wget https://github.com/nvm-sh/nvm/archive/refs/tags/v0.38.0.tar.gz

mkdir -p /root/.nvm
tar -zxvf nvm-0.38.0.tar.gz -C /root/.nvm


vim ~/.bashrc

export NVM_DIR="$HOME/.nvm/nvm-0.38.0"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

source ~/.bashrc


使用NVM安装node v8.16.0

nvm install 8.16.0

 切换node版本到v14.17.3
nvm use 14.17.3

列出已经安装的版本

nvm ls

卸载node v8.16.0

nvm uninstall 8.16.0