1.输入指令： sudo npm install -g vue-cli 出现错误

npm ERR! code EACCES
npm ERR! syscall mkdir
npm ERR! path /usr/local/lib/node_modules/vue-cli
npm ERR! errno -13
npm ERR! Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/vue-cli'
npm ERR!  [Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/vue-cli'] {
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'mkdir',
npm ERR!   path: '/usr/local/lib/node_modules/vue-cli'
npm ERR! }
npm ERR! 
npm ERR! The operation was rejected by your operating system.
npm ERR! It is likely you do not have the permissions to access this file as the current user
npm ERR! 
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/xiaobao/.npm/_logs/2022-02-28T13_46_09_609Z-debug-0.log

2.解决步骤：依次输入加粗指令

xiaobao@localhost ~ % mkdir ~/.npm-global
xiaobao@localhost ~ % npm config set prefix '~/.npm-global’
xiaobao@localhost ~ % export PATH=~/.npm-global/bin:$PATH
xiaobao@localhost ~ % source ~/.profile
source: no such file or directory: /Users/xiaobao/.profile
xiaobao@localhost ~ % npm install -g jshint

added 30 packages, and audited 31 packages in 41s

3 packages are looking for funding
run npm fund for details

found 0 vulnerabilities

3.再次输入：sudo npm install -g vue-cli即可安装完成。

4.最后输入：vue list 列出可用模版。

xiaobao@localhost ~ % vue list

Available official templates:

★ browserify - A full-featured Browserify + vueify setup with hot-reload, linting & unit testing.
★ browserify-simple - A simple Browserify + vueify setup for quick prototyping.
★ pwa - PWA template for vue-cli based on the webpack template
★ simple - The simplest possible Vue setup in a single HTML file
★ webpack - A full-featured Webpack + vue-loader setup with hot reload, linting, testing & css extraction.
★ webpack-simple - A simple Webpack + vue-loader setup for quick prototyping.