使用指令：v-on v-for v-on v-bind v-model
html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>vue.js</title> <style> body {font-family: "\5FAE\8F6F\96C5\9ED1"} .red {color: red;} body > div { width: 200px; margin: 50px auto; } </style> </head> <body> <div> <h3>vue——列表的添加</h3> <input type="text" v-model="newitem" v-on:keyup.enter="clickKey"> <ul> <li v-for="item in items" v-text="item.event" v-bind:class="{red:item.isFinish}" v-on:click="liClick(item)"></li> </ul> </div> <script src="https://unpkg.com/vue/dist/vue.js"></script> <script src="https://www.jb51.net/testvue.js"></script> </body> </html>
js
window.onload = function() { Vue.component("todo-item", { props: ["todo"], template: "<li>{{todo.text}}</li>" }) var app = new Vue({ el: '#app', data: { items: [ ], newitem: '' }, methods: { liClick: function (item) { item.isFinish = !item.isFinish; }, clickKey: function () { this.items.push({ event: this.newitem, isFinish: false }) this.newitem = ''; } } }); }