Vue-click事件（此外事件还有mouseover,mouseout,dblclick,mousdown...）:

v-on:click="函数"

v-on:click/mouseout/mouseover/dblclick/mousedown.....

new Vue({

el:'#box',

data:{ //数据

    arr:['apple','banana','orange','pear'],

    json:{a:'apple',b:'banana',c:'orange'}

},

methods:{

    show:function(){ //方法

        alert(1);

    }

}

});

<div id="box">
    <input type="button" value="按钮" v-on:click="show()">
</div>

实例（vue点击添加）

<script>
    window.onload=function(){
        new Vue({
            el:'#box',
            data:{ //数据
                arr:['apple','banana','orange','pear'],
                json:{a:'apple',b:'banana',c:'orange'}
            },
            methods:{
                add:function(){
                    this.arr.push('tomato');
                }
            }
        });
    };
</script>

<div id="box">
    <input type="button" value="按钮" v-on:click="add()">
    <br>
    <ul>
        <li v-for="value in arr">
            {{value}}
        </li>
    </ul>
</div>