创建一个最简单的Vuex

1.引入注册

import Vue from 'vue'
import Vuex from 'vuex'
Vue.use(Vuex)
const store = new Vuex.Store({
        state:{
            sortData: []
        },
        mutations:{
            getSortData(state, listData){
                state.sortData = listData
            }
        }
})
export default store

main.js 注册
import store from './store/index.js'

const app = new Vue({
    ...App,
        store
})

2.某一个组件提交数据

this.$store.commit('getSortData', res[1].data)

3.另一个组件接收数据

import { mapState } from 'vuex'

computed: {
            ...mapState(['sortData']),
            count(){
                this.merchantData  = this.sortData
            },