https://nodejs.org/en/download/
历史版本可从https://nodejs.org/dist/下载
tar -xvf node-v10.16.0-linux-x64.tar.xz
mv node-v10.16.0.0-linux-64/ /usr/local/nodejs
vi /etc/profile
export PATH=$PATH:/usr/local/nodejs/bin
source /etc/profile
ln -s /usr/local/nodejs/bin/npm /usr/local/bin/
ln -s /usr/local/nodejs/bin/node /usr/local/bin/
node -v
npm -v
// npm配置淘宝镜像
npm config set registry https://registry.npm.taobao.org
// 查看npm镜像是否配置成功
npm config get registry
// npm回复镜像
npm config delete register
npm config edit
// npm安装cnpm,使用cnpm来安装js库
npm install -g cnpm --registry=https://registry.npm.taobao.org