在项目中使用Vuex

1）在src目录下新建store文件夹

2）新建index.js

import Vue from 'vue'
import Vuex from 'vuex'
import state from './state'
import mutations from './mutations'

Vue.use(Vuex)

const store = new Vuex.Store({
  state,
  mutations
})

export default store

3）新建state.js，存放数据

export default {
  userInfo: ''
}

4）新建mutations.js，存放mutations

export default {
  login (state, v) {
    state.userInfo = v
  }
}

5）在main.js引入store/index.js

import store from './store'