basic/5.4方法与事件v-on.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>
</head>
<body>
    <div id="app">
        点击次数：{{counter}}
        <button @click="handleAdd()">+ 1</button>
        <button @click="handleAdd(10)">+ 10</button>
    </div>
    <!-- 访问原生事件 -->
    <div id="app2">
        <a href="http://www.apple.com" @click="handleClick('禁止打开',$event)">打开链接</a>
    </div>
    <script src="https://unpkg.com/vue/dist/vue.min.js"></script>
    <script>
        var app=new Vue({
            el : '#app',
            data: {
                counter: 0
            },
            methods:{
                handleAdd: function(count){
                    console.log(count);
                    count= count||1;
                    this.counter += count;
                }
            }
        });
        var app2=new Vue({
            el: '#app2',
            methods:{
                handleClick: function(message,event){
                    event.preventDefault();
                    window.alert(message);
                }
            }
        })
    </script>
</body>
</html>