标签:目录 传递 状态 item main state port ble 电动
vuex中的store是一个状态管理器,用于分发数据。相当于父组件数据传递给子组件。
1.安装vuex
npm i vuex --save
2.在src目录中创建store文件夹,里面创建store.js
(1)store.js里引入vue和Vuex,
import Vue from ‘vue‘ import Vuex from ‘vuex‘ Vue.use(Vuex)
(2)创建并导出store对象
export const store = new Vuex.Store({ })
(3)在store对象中创建数据
import Vue from ‘vue‘ import Vuex from ‘vuex‘ Vue.use(Vuex) export const store = new Vuex.Store({ state:{ product:[ {name:"自行车",price:120}, {name:"电动车",price:200}, {name:"出租车",price:300}, {name:"大货车",price:444}, ] } })
3.在main.js中引入store
import Vue from ‘vue‘ import App from ‘./App‘ import {store} from ‘../src/store/store‘ // 引入store Vue.config.productionTip = false /* eslint-disable no-new */ new Vue({ el: ‘#app‘, store, // 这里写这里 components: { App }, template: ‘<App/>‘ })
4.在子组件中使用computed获得store里的数据
<template> <div> <p>one</p> <table border="1"> <tr> <th>产品名称</th> <th>产品价格</th> </tr> <tr v-for="(item,i) in getProduct"> <td>{{item.name}}</td> <td>${{item.price}}</td> </tr> </table> </div> </template> <script> export default { name: "One", data () { return { }; }, computed:{ getProduct(){ // this.$tore.state.xxx return this.$store.state.product; } } } </script> <style lang="css" scoped> table{ width: 200px; height: 100px; border-collapse: collapse; } </style>
标签:目录 传递 状态 item main state port ble 电动
原文地址:https://www.cnblogs.com/luguankun/p/10759638.html