1. 下载

      1. wget https://npm.taobao.org/mirrors/node/v14.15.1/node-v14.15.1-linux-x64.tar.xz

    2. 解压 ```shell tar -xvf node-v14.15.1-linux-x64.tar.xz

    mv node-v14.15.1-linux-x64 /usr/local/nodejs/

    2. 3. 配置环境变量
    3. ```shell
    4. vim /etc/profile
    6. export NODEJS_HOME=/usr/local/nodejs
    7. export PATH=${NODEJS_HOME}/bin:${PATH}
    9. source /etc/profile

    1. 查看nodejs版本

      1. node -v
      2. npm -v 
      3. yarn -v

    2. 安装yarn

      1. npm install -g yarn

    3. 设置为淘宝源 ```shell yarn config set registry https://registry.npm.taobao.org -g

    yarn config set sass_binary_site http://cdn.npm.taobao.org/dist/node-sass -g

    npm config set registry https://registry.npm.taobao.org ```