v-model 指令在表单控件元素上创建双向数据绑定
vue指令表单输入控件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
输入的文本<input type="text" v-model="message">{{message}}
性别:
<input type="radio" name="sex" value="男" v-model="aaa">男
<input type="radio" name="sex" value="女" v-model="aaa">女 <br/>
选中了: {{aaa}} <br/>
<select v-model="bbb">
<option value="" disabled>--请选择--</option>
<option value="volvo">Volvo</option>
<option value="saab" selected>Saab</option>
<option value="opel">Opel</option>
<option value="audi">Audi</option>
</select>
<span>{{bbb}}</span>
</div>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
var vm = new Vue({
el: app,
data: {
message: "",
checked: false,
aaa: "",
bbb: ''
}
})
</script>
</body>
</html>

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