js--對tab的簡單封裝

最後更新：2017-09-03 來源：互聯網

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標籤：title int win name 顯示 index display pad 不同的

<!DOCTYPE html><html><head lang="en">    <meta charset="UTF-8">    <title></title>    <script>        window.onload = function(){            function tab(obj){                var target = document.getElementById(obj);                var spans = target.getElementsByTagName("span");                var lis = target.getElementsByTagName("li");                for(var i=0; i < spans.length; i++){                    spans[i].index = i;                    spans[i].onmouseover = function(){                        for(var j=0; j<spans.length;j++){                            spans[j].className="";                            lis[j].className = "";                        }                        this.className="current";                        lis[this.index].className ="show";                    }                }            }            tab("one");            tab("tow");            tab("third")        }    </script>    <style>        *{            margin: 0;            padding: 0;        }        ul{            list-style: none;        }        .box{            width: 340px;            height: 300px;            border: 1px solid #ccc;            margin: 100px auto;        }        .mt span{            display: inline-block;            width: 80px;            height: 30px;            background-color: pink;            text-align: center;            line-height: 30px;            cursor: pointer;        }        .mb li{            width: 100%;            height: 270px;            background-color: purple;            display: none;        }        .mt span.current{            background-color: purple;        }        .mb li.show{            display: block;        }    </style></head><body><div class="box" id="one">    <div class="mt">        <span class="current">新聞</span>        <span>體育</span>        <span>娛樂</span>        <span>八卦</span>    </div>    <div class="mb">        <ul>            <li class="show">新聞</li>            <li>體育</li>            <li>娛樂</li>            <li>八卦</li>        </ul>    </div></div><div class="box" id="tow">    <div class="mt">        <span class="current">新聞</span>        <span>體育</span>        <span>娛樂</span>        <span>八卦</span>    </div>    <div class="mb">        <ul>            <li class="show">新聞</li>            <li>體育</li>            <li>娛樂</li>            <li>八卦</li>        </ul>    </div></div><div class="box" id="third">    <div class="mt">        <span class="current">新聞</span>        <span>體育</span>        <span>娛樂</span>        <span>八卦</span>    </div>    <div class="mb">        <ul>            <li class="show">新聞</li>            <li>體育</li>            <li>娛樂</li>            <li>八卦</li>        </ul>    </div></div></body></html>

　　通過傳遞盒子的id，對不同盒子的tab進行特效操作。滑鼠通過不同的span標籤時，顯示不同的內容。

js--對tab的簡單封裝

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