本文介绍了一个使用Vue.js实现的下拉选择框示例。该示例包括一个带有选项的下拉菜单和一个显示所选值的区域。通过双向数据绑定，可以实时更新用户的选择。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript" src="./vue.js"></script>
</head>
<body>
<label 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>
</label>
<script>
new Vue({
el: '#app',
data: {
selected: 'A',
options: [
{ text: 'One', value: 'A' },
{ text: 'Two', value: 'B' },
{ text: 'Three', value: 'C' }
]
}
})
</script>
</body>
</html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript" src="./vue.js"></script>
</head>
<body>
<label 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>
</label>
<script>
new Vue({
el: '#app',
data: {
selected: 'A',
options: [
{ text: 'One', value: 'A' },
{ text: 'Two', value: 'B' },
{ text: 'Three', value: 'C' }
]
}
})
</script>
</body>
</html>
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