原生javascript写的网页选项卡和jQuery写的比较

总的来说思路比较简单，就是先获取节点，然后对节点进行相应的处理,下面是完整的页面代码：

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>原生js tab</title>
<style type="text/css">
.tab{
    margin:10px auto;
    position:relative;
    width:300px;
}
ul,li{
    list-style-type:none;
    padding:0;
    margin:0;
    font:13px/20px SimSun,arial;
    color:#333;
    text-align:center;
}
.tabTltle ul li{
  float:left;
  position:relative;
  background:#fefefe;
  background:-webkit-gradient(linear,left top,left bottom, from(#fefefe), to(#ededed));
  padding:7px 15px;
  border:1px #ddd solid;
  margin-right:-1px;
  cursor:pointer;

}
.tabTltle ul li.active{
    background:#fff;
    font-weight: bold;
}
.clearfix{
}
.clearfix:after{
    display:block;
    clear:both;
    overflow:hidden;
    content:"";
}
.tabConn{
    border:1px #eee solid;
    position:relative;
    height:100px
}
.tabConn div{
    position:absolute;
    opacity:0;
    filter:alpha(opacity=0);
    padding:5px;
    text-align:center;
    width:100%;
}
.tabConn div.current{
    opacity:1;
    filter:alpha(opacity=100);
}
</style>
</head>
<body>
    <div id="tab" class="tab">
        <div class="tabTltle">
            <ul class="clearfix">
                <li class="active">标题一</li>
                <li>标题二</li>
                <li>标题三</li>
                <li>标题四</li>
            </ul>
        </div>
        <div class="tabConn">
            <div class="current">aaaaaaaaaaaaaaa</div>
            <div>bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
            <div>cccccccccccccccccccccccccccccccc</div>
            <div>ddddddddddddddddddddddddddddd</div>
        </div>
    </div>
<script type="text/javascript">
 (function(){
     var tab = document.getElementById("tab");
     var tabList = tab.getElementsByTagName("div")[0].getElementsByTagName("li");
     var tabConn = tab.getElementsByTagName("div")[1].getElementsByTagName("div");for(var i=0;i<tabList.length;i++){
        tabList[i].index = i;
        tabList[i].onclick = function(){
            showConn(this.index);
        }
    }
    function showConn(_index){
        var index = _index;for(var j=0;j<tabList.length;j++){
            tabList[j].className = "";
            tabConn[j].className = "";
            tabConn[j].style.opacity=0;
        }
        tabConn[index].className="current";
        tabList[index].className="active";
    }
 })();
</script>
</body>
</html>

下面我们来看一下jQuery写的（css共用,需要引进jQuery库）：

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>jQuery tab</title>
<script type="text/javascript" src="js/jquery-1.8.1.min.js"></script>
<style type="text/css">
.tab{
    margin:10px auto;
    position:relative;
    width:300px;
}
ul,li{
    list-style-type:none;
    padding:0;
    margin:0;
    font:13px/20px SimSun,arial;
    color:#333;
    text-align:center;
}
.tabTltle ul li{
  float:left;
  position:relative;
  background:#fefefe;
  background:-webkit-gradient(linear,left top,left bottom, from(#fefefe), to(#ededed));
  padding:7px 15px;
  border:1px #ddd solid;
  margin-right:-1px;
  cursor:pointer;

}
.tabTltle ul li.active{
    background:#fff;
    font-weight: bold;
}
.clearfix{
}
.clearfix:after{
    display:block;
    clear:both;
    overflow:hidden;
    content:"";
}
.tabConn{
    border:1px #eee solid;
    position:relative;
    height:100px
}
.tabConn div{
    position:absolute;
    opacity:0;
    filter:alpha(opacity=0);
    padding:5px;
    text-align:center;
    width:100%;
}
.tabConn div.current{
    opacity:1;
    filter:alpha(opacity=100);
}
</style>
</head>
<body>
<h3>jQuery写的选项卡:</h3>
    <div id="tab2" class="tab">
        <div class="tabTltle tab-title">
            <ul class="clearfix">
                <li class="active">标题一</li>
                <li>标题二</li>
                <li>标题三</li>
                <li>标题四</li>
            </ul>
        </div>
        <div class="tabConn tab-conn">
            <div class="current">aaaaaaaaaaaaaaa</div>
            <div>bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
            <div>cccccccccccccccccccccccccccccccc</div>
            <div>ddddddddddddddddddddddddddddd</div>
        </div>
    </div>
<script type="text/javascript">
$(document).ready(function(){
    var $tabTitle = $('.tab-title').find('li');
    var $tabList =  $('.tab-conn > div');
    $tabTitle.click(function(){
        $tabTitle.each(function(){
            $tabTitle.removeClass('active');
        });
        var index = $tabTitle.index(this);
        $(this).addClass('active');    
        $tabList.eq(index).addClass('current').siblings().removeClass('current');
    });
});
</script>
</body>
</html>

是不是简单了好多！

posted @ 2015-04-26 23:32  Paul-Liang  阅读(678)  评论(0)  编辑  收藏  举报