3-1-2-1-Vue基础语法 - 07 指令之v-model - 《Python 全栈开发与分析电子书(上)-V2022》

作用：表单和数据同步(绑定)
参考vue官网文档 https://cn.vuejs.org/v2/guide/forms.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>vue的双向数据绑定v-model</title>
    <style>
    </style>
</head>
<body>
    <div id='app'>
        <p>{{msg}}</p>
        <input type="text" v-model='msg'>
        <!-- 复选框单选 -->
        <label for="checkbox">{{checked}}</label>
        <input type="checkbox" id='checkbox' v-model='checked'>
        <div class="box">
            <label for="a">黄瓜</label>
            <input type="checkbox" id='a' value='黄瓜' v-model='checkedNames'>
            <label for="b">西红柿</label>
            <input type="checkbox" id='b' value='西红柿' v-model='checkedNames'>
            <label for="c">芸豆</label>
            <input type="checkbox" id='c' value='芸豆' v-model='checkedNames'>
            <br />
            <span>{{checkedNames}}</span>
        </div>
        <label>{{txt}}</label>
        <input v-model.lazy="txt">
        <label>{{msg2}}</label>
        <input v-model.trim="msg2">
    </div>
    <script src="./vue.js"></script>
    <script>
        new Vue({
            el: '#app',
            data: {
                msg: 'ecithy',
                msg2: '',
                txt: '',
                checked: false,
                checkedNames: []
            },
            methods: {
            },
        })
    </script>
</body>
</html>