demo.html
1 <!DOCTYPE html>
2 <html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml" xmlns:v-html="http://www.w3.org/1999/xhtml"
3 xmlns:v-on="http://www.w3.org/1999/xhtml">
4 <head>
5 <meta charset="UTF-8">
6 <title>Vue Demo</title>
7 <!--自选版本-->
8 <!--<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.js"></script>-->
9 <!-- 开发环境版本，包含了有帮助的命令行警告 -->
10 <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
11 <!-- 生产环境版本，优化了尺寸和速度 -->
12 <!--<script src="https://cdn.jsdelivr.net/npm/vue"></script>-->
13 <link href="style.css" rel="stylesheet">
14 </head>
15 <body>
16 <div id="app">
17 <div>
18 <h2>动态绑定CSS样式</h2>
19 <div>
20 <h4>示例一</h4>
21 <div v-on:click="varChangeColor = !varChangeColor" v-bind:class="{changeColor:varChangeColor}">
22 <span>点击切换颜色</span>
23 </div>
24
25 <hr>
26 <h4>示例二</h4>
27 <button v-on:click="varChangeColor = !varChangeColor">改变颜色</button>
28 <button v-on:click="varChangeLength = !varChangeLength">改变长度</button>
29 <button v-on:click="varChangeLength = !varChangeLength,varChangeColor = !varChangeColor">两者都改变</button>
30 <!--computed属性封装对象-->
31 <div v-bind:class="computedClass">
32 <span>测试内容</span>
33 </div>
34 </div>
35
36 </div>
37
38
39 </div>
40 <script src="app.js"></script>
41
42
43 </body>
44 </html>
app.js
1 var app = new Vue({
2 el: ‘#app‘,
3 data: {
4 varChangeColor: false,
5 varChangeLength: false,
6 },
7 methods: {},
8
9 computed: {
10 computedClass: function () {
11 return {
12 changeColor: this.varChangeColor,
13 changeLength: this.varChangeLength
14 }
15 },
16 }
17 })
style.css
1 span {
2 background: red;
3 display: inline-block;
4 padding: 10px;
5 color: #fff;
6 margin: 10px 0;
7 }
8
9 .changeColor span {
10 background: green;
11 }
12
13 .changeLength span:after {
14 content: "length";
15 margin-left: 10px;
16 }
截图：
原文地址：https://www.cnblogs.com/gongxr/p/10364459.html
时间： 2024-11-05 18:50:28