<div id="abc">
    {{cfg.title}}

    <button @click="abc">asf</button>
    <button @click="abc">openDia</button>
</div>

<script>
    var vm = new Vue({
        el: "#abc",
        data: {
            cfg: {
                title: "12"
            }
        },
        methods: {
            abc: function () {
                console.log("abc");

            }
        }

    });
</script>