组件代码：
<template> <div> <input type="text" v-model="searchText"> <ul> <li v-for="(book, index) in filterBooks" :key="index"> 序号 : {{index}}, 书名 ; {{book.name}}, 价格 : {{book.price}} </li> </ul> <div> <button @click="setOrderType(2)">价格升序</button> <button @click="setOrderType(1)">价格降序</button> <button @click="setOrderType(0)">原始顺序</button> </div> </div> </template> <script> export default { name:"filter1", data () { return { searchText: '', orderType: 0, // 0:默认顺序, 1:价格降序, 2:价格升序 books: [ {name: 'Vue.js', price:50}, {name: 'Javascript', price:30}, {name: 'Css', price:40}, {name: 'Html', price:60} ] } }, computed: { filterBooks () { const {searchText, books, orderType} = this let filterArr = new Array(); // 过滤数组 过滤name键 filterArr = books.filter(p => p.name.indexOf(searchText) !== -1) // 排序 if(orderType) { filterArr.sort(function (p1, p2) { if(orderType === 1) { // 降序 return p2.price - p1.price; } else { // 升序 return p1.price - p2.price; } }) } return filterArr; } }, methods: { setOrderType (orderType) { this.orderType = orderType } } } </script> <style> </style>