通过命令卸载node
$ sudo npm uninstall npm -g
$ sudo rm -rf /usr/local/lib/node/usr/local/lib/node_modules/var/db/receipts/org.nodejs.*
$ sudo rm -rf /usr/local/include/node/Users/$USER/.npm
$ sudo rm /usr/local/bin/node
$ sudo rm /usr/local/share/man/man1/node.
$ sudo rm /usr/local/lib/dtrace/node.d
