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VUE 方法

1、$event 变量

$event 变量用于访问原生DOM事件。

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

    <head>
        <meta charset="UTF-8" />
        <title>vue示例</title>
    </head>

    <body>
        <div id="app">
            点击次数：{{counter}}
            <button @click="handleAdd(1,$evert)">+1</button>
            <button @click="handleAdd(10,$evert)">+10</button>
        </div>
        <script src="https://cdn.bootcss.com/vue/2.5.9/vue.min.js"></script>
        <script type="text/javascript">
            var app = new Vue({
                el: '#app',
                data: {
                    counter: 0
                },
                methods: {
                    handleAdd: function(counter, event) {
                        //阻止默认事件
                        event.preventDefault();

                        counter = counter || 1;
                        this.counter += counter;
                    }
                }
            });
        </script>
    </body>

</html>

2、修饰符

<!--阻止事件冒泡-->
            <a @click.stop="handle()"></a>
            <!--阻止默认事件-->
            <a @click.prevent="handle()"></a>
            <!--修饰符可以串联-->
            <a @click.prevent.stop="handle()"></a>
            <!--只有事件本身（而非子元素）触发-->
            <a @click.self="handle()"></a>
            <!--只触发一次，组件同样适用-->
            <a @click.once="handle()"></a>
            <!--键盘事件-->
            <a @keyup.enter="handle()"></a>

示例：

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

    <head>
        <meta charset="UTF-8" />
        <title>vue示例</title>
    </head>

    <body>
        <div id="app">
            <!--阻止默认事件-->
            <a @click.prevent="handle()" href="https://www.baidu.com/">https://www.baidu.com/</a>
        </div>
        <script src="https://cdn.bootcss.com/vue/2.5.9/vue.min.js"></script>
        <script type="text/javascript">
            var app = new Vue({
                el: '#app',
                data: {
                    counter: 0
                },
                methods: {
                    handle: function() {
                        console.log(1111)
                    }
                }
            });
        </script>
    </body>

</html>

 

posted @ 2017-12-18 10:15  孟繁贵  阅读(333)  评论(0)  编辑  收藏  举报
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