vue--day34--创建vue 脚手架

Vue 脚手架（cli (command line interface)）是Vue 官方提供的标准化开发工具（开发平台）

最新的是4.0

1. 配置淘宝镜像

npm config set registry https://registry.npm.taobao.org

2. 获取淘宝镜像是否设置成功

npm config get registry

3. 仅执行一次 全局安装

npm install -g @vue/cli

可能会报错

ode EACCES

npm ERR! syscall mkdir

npm ERR! path /usr/local/lib/node_modules/@vue

npm ERR! errno -13

npm ERR! Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/@vue'

npm ERR! [Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/@vue'] {

npm ERR! errno: -13,

npm ERR! code: 'EACCES',

npm ERR! syscall: 'mkdir',

npm ERR! path: '/usr/local/lib/node_modules/@vue'

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.

 

是权限不够 用

sudo npm install -g @vue/cli 安装

4. 检查是否成功

vue --version

 

5. 去换创建的目录

 vue create vue_test

 

sudo chown -R 501:20 "/Users/shimanyi/.npm"

babel   是 ES6------ES5

eslint   是 语法检查的

6.运行

npm run serve