标签:closed tor compute button return 图片 inf zh-cn 实现
https://vuex.vuejs.org/zh-cn
state --> view --> action -> state
多组件共享状态, 之前操作方式,由父组件传递到各个子组件。 当路由等加入后,会变得复杂。 引入viewx 解决共享问题。
安装
npm install --save vuex
代码1 :原vue实现计数器
app.uve
<template> <div> <p>点击次数{{count}}, 奇偶数:{{eventOrOdd}}</p> <button @click="increment">+</button> <button @click="decrement">-</button> <button @click="incrementIfOdd">奇数加</button> <button @click="incrementAsync">异步加</button> </div> </template> <script> export default { data () { return { count: 0 } }, computed: { eventOrOdd () { return this.count % 2 === 0 ? ‘偶数‘ : ‘奇数‘ } }, methods: { increment () { const count = this.count this.count = count + 1 }, decrement () { const count = this.count this.count = count - 1 }, incrementIfOdd () { const count = this.count if (count % 2 === 1) { this.count = count + 1 } }, incrementAsync () { setTimeout(() => { const count = this.count this.count = count + 1 }, 1000) } } } </script> <style> </style>
代码2:
标签:closed tor compute button return 图片 inf zh-cn 实现
原文地址:https://www.cnblogs.com/infaaf/p/9689832.html