2.0-父组件和子组件4-父.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>

    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:'#box',
                data:{
                    a:'我是父组件数据'
                },
                components:{
                    'child-com':{
                        data(){
                            return {
                                b:''
                            }
                        },
                        props:['msg'],
                        template:'#child',
                        mounted(){
                            this.b=this.msg;
                        },
                        methods:{
                            change(){
                                this.b='被改了';
                            }
                        }
                    }
                }
            });
        };
    </script>
</head>
<body>
    <template id="child">
        <div>
            <span>我是子组件</span>
            <input type="button" value="按钮" @click="change">
            <strong>{{b}}</strong>
        </div>
    </template>

    <div id="box">
        父级: ->{{a}}
        <br>
        <child-com :msg.sync="a"></child-com>
    </div>
</body>
</html>


<!-- 子元素更改 -->