<div id="test">
    <button @click="sayHi('你好')">说你好</button> <!--这里使用@-->
    <button @click="sayHi('我被点击了')">说我被点击了</button> <!--这里使用@-->
</div>
<script type="text/javascript">
    var myVue = new Vue({
        el: '#test',
        methods: {      //这里使用methods
            sayHi: function (message) {
                alert(message)
            }
        }
    })
</script>

<button @click="changeColor('你好',$event)">点击我</button> <!--这里使用@-->
<div style="height: 100px;width: 100px;background-color: red;" @mouseover="over('鼠标从我上面滑过',$event)">
    鼠标从我上面滑过试试
</div>
           
            
<script type="text/javascript">
    var myVue = new Vue({
        el: '#test',
        methods: {      //这里使用methods
            changeColor: function (message, event) {
                alert(message+event);    //弹出我被点击了,事件是[object MouseEvent]
            },
            over :function (message, event) {
                alert(message+event);   //弹出鼠标从我上面滑过,事件是[object MouseEvent]
            }
        }
    })
</script>

<a v-on:click.stop="doThis"></a>

<form v-on:submit.prevent="onSubmit"></form>

<div v-on:click.capture="doThis">...</div>

<div v-on:click.self="doThat">...</div>

<a v-on:click.once="doThis"></a>

<div id="app">
    {{msg}}
    <input type="text" v-on:keydown="ke"/>
</div>
<script>
var app = new Vue({
        el:"#app",
        data:{
            msg:"事件处理",
            counter:0
        },
        methods:{
            ke:function(e){
                if(e.keyCode == 13){
                    this.msg = e.target.value;
                    e.target.value = "";
                }
            }
        }
});
</script>