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vue v-model表单控件绑定详解

更新时间:2020-05-12 20:42:02 作者:startmvc
v-model指令在表单控件元素上创建双向数据绑定,下面一一进行示例解释。1、v-model双向绑定

v-model 指令在表单控件元素上创建双向数据绑定,下面一一进行示例解释。

1、v-model 双向绑定文本


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <input v-model="message" placeholder="edit me">
 <p>Message is: {{ message }}</p>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 message: '绑定文本'
 }
 })
</script>
</html>

输出结果:

2、v-model 双向绑定多行文本,与上面的例子相似。


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <<span>Multiline message is:</span>
 <p style="white-space: pre">{{ message }}</p>
 <br>
 <textarea v-model="message" placeholder="add multiple lines"></textarea>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 message: '绑定多行文本'
 }
 })
</script>
</html>

输出结果:

3、v-model 绑定复选框


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <input type="checkbox" id="checkbox" v-model="checked">
 <label for="checkbox">{{ checked }}</label>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 checked: 'true'
 }
 })
</script>
</html>

输出结果:选中为true   不选中则为false


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <input type="checkbox" id="jack" value="刘二狗" v-model="checkedNames">
 <label for="jack">Jack</label>
 <input type="checkbox" id="john" value="张麻子" v-model="checkedNames">
 <label for="john">John</label>
 <input type="checkbox" id="mike" value="小狗子" v-model="checkedNames">
 <label for="mike">Mike</label>
 <br>
 <span>Checked names: {{ checkedNames }}</span>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 checkedNames: []
 }
 })
</script>
</html>

输出结果:

4、v-model 绑定单选按钮


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <input type="radio" id="one" value="One" v-model="picked">
 <label for="one">One</label>
 <br>
 <input type="radio" id="two" value="Two" v-model="picked">
 <label for="two">Two</label>
 <br>
 <span>Picked: {{ picked }}</span>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 picked: ''
 }
 })
</script>
</html>

输出结果:

5、v-model 绑定下拉列表


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <select v-model="selected">
 <option>A</option>
 <option>B</option>
 <option>C</option>
 </select>
 <span>Selected: {{ selected }}</span>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 selected: ''
 }
 })
</script>
</html>

输出结果:

多选列表


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <select v-model="selected" multiple style="width: 50px">
 <option>A</option>
 <option>B</option>
 <option>C</option>
 </select>
 <br>
 <span>Selected: {{ selected }}</span>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 selected: []
 }
 })
</script>
</html>

输出结果:

6、动态选项,用 v-for 渲染:


<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title></title>
 <script type="text/javascript" src="vue.js"></script>
</head>
<body>
<div id="app">
 <select v-model="selected">
 <option v-for="option in options" v-bind:value="option.value">
 {{ option.text }}
 </option>
 </select>
 <span>Selected: {{ selected }}</span>
</div>
</body>
<script>
 var vm = new Vue({
 el:"#app",
 data: {
 selected: 'A',
 options: [
 { text: 'One', value: 'A' },
 { text: 'Two', value: 'B' },
 { text: 'Three', value: 'C' }
 ]
 }
 })
</script>
</html>

输出结果:

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

vue v model 表单控件绑定