appledeMacBook-Pro:~ Murphy$ node -v v10.16.0
appledeMacBook-Pro:~ Murphy$ sudo npm cache clean -f //别忘了输入密码 Password: //出来这句话的时候,我还以为失败了,这个只是npm对于我们操作的一个警告,别慌 npm WARN using --force I sure hope you know what you are doing.
appledeMacBook-Pro:~ Murphy$ sudo npm install -g n /usr/local/bin/n -> /usr/local/lib/node_modules/n/bin/n + n@6.4.0 added 1 package from 4 contributors in 1.969s appledeMacBook-Pro:~ Murphy$ sudo n stable installing : node-v12.16.1 mkdir : /usr/local/n/versions/node/12.16.1 fetch : https://nodejs.org/dist/v12.16.1/node-v12.16.1-darwin-x64.tar.xz installed : v12.16.1 (with npm 6.13.4)
appledeMacBook-Pro:~ Murphy$ node -v v12.16.1 appledeMacBook-Pro:~ Murphy$