1. 先卸載原來的nodejs
yum remove nodejs npm -y node
2. 安裝nodejs:npm
nodejs 10:bash
curl --silent --location https://rpm.nodesource.com/setup_10.x | bash -curl
nodejs 8:url
curl --silent --location https://rpm.nodesource.com/setup_8.x | bash -rem
yum install -y nodejsio