【nodejs】Nodejs切换nexus配置的私服
查看npm源
npm config get registry
永久修改本地npm的配置：
npm config set registry http://192.168.1.106:34765/repository/npm_group_david/
重置为官方源
npm config set registry https://registry.npmjs.org/
npm config get registry
npm config set registry http://192.168.1.106:34765/repository/npm_group_david/
npm config set registry https://registry.npmjs.org/