index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./css/dialog.css" />
</head>

<body>

    <div id="app">
        <button @click="visible=!visible">按钮</button>

        <kkb-dialog :title="title" :visible.sync="visible" @open="open" @close="close">
            <span>这是一段信息</span>
        </kkb-dialog>
    </div>

    <script src="./js/vue.js"></script>
    <script src="./js/dialog.js"></script>
    <script>
        new Vue({
            el: '#app',
            data: {
                title: '新的标题',
                visible: true
            },
            methods: {
                open() {
                    console.log('打开了');
                },

                close() {
                    console.log('关闭了');
                }
            }
        });
    </script>
</body>

</html>