例题1.子菜单下拉 2.DIV做下拉列表

1.子菜单下拉

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
*{ margin:0px auto; padding:0px}
#menu{ width:700px; height:40px; border:1px solid #999; margin-top:30px}
.list{ width:100px; height:40px; text-align:center; line-height:40px; vertical-align:middle; font-size:16px; font-family:微软雅黑; float:left}
.list:hover{ cursor:pointer; background-color:#63C; color:white}
.ziwai{width:0px; height:0px;position:relative; float:left; top:40px; left:-100px}
.zi{ width:100px; height:100px; background-color:#6C3; display:none }
</style>

</head>

<body>

<div id="menu">
    <div class='list' onmouseover="Show('z1')" onmouseout="YinCang()">首页</div>
        <div class="ziwai" >
            <div class="zi" id="z1"></div>
        </div>
    <div class='list' onmouseover="Show('z2')" onmouseout="YinCang()">产品介绍</div>
        <div class="ziwai" >
            <div class="zi" id="z2"></div>
        </div>
    <div class='list' onmouseover="Show('z3')" onmouseout="YinCang()">公司简介</div>
        <div class="ziwai" >
            <div class="zi" id="z3"></div>
        </div>
    <div class='list' onmouseover="Show('z4')" onmouseout="YinCang()">联系我们</div>
        <div class="ziwai" >
            <div class="zi" id="z4"></div>
        </div>
    <div class='list' onmouseover="Show('z5')" onmouseout="YinCang()">新闻动态</div>
        <div class="ziwai" >
            <div class="zi" id="z5"></div>
        </div>
</div>

</body>
<script type="text/javascript">
    
    function Show(id)
    {
        //让所有的子菜单隐藏
        var attr = document.getElementsByClassName("zi");
        
        for(var i=0; i<attr.length;i++)
        {
            attr[i].style.display = "none";
        }
        
        //让和该菜单关联的子菜单显示
        document.getElementById(id).style.display = "block";
    }
    
    function YinCang()
    {
        var attr = document.getElementsByClassName("zi");
        
        for(var i=0; i<attr.length;i++)
        {
            attr[i].style.display = "none";
        }
    }
    
</script>
</html>

 


2.DIV做下拉列表

 

<head>

<style type="text/css">
*{ margin:0px auto; padding:0px}
#xiala{ width:180px; height:33px; border:1px solid #999;text-align:center; line-height:33px; vertical-align:middle; }
#xiala:hover{ cursor:pointer}

#zi{width:180px; height:150px; border:1px solid #63C; border-top:0px; display:none}

.list{width:180px; height:33px; text-align:center; line-height:33px; vertical-align:middle; border-bottom:1px solid #63C; background-color:#CCC}
.list:hover{ cursor:pointer; background-color:#63C; color:white}

</style>

</head>

<body>

<div style="width:700px; height:500px; margin-top:30px">

    <div id="xiala" onclick="Show()"></div>    
    <div id="zi">
        <div class="list" onclick="Xuan(this)">山东</div>
        <div class="list" onclick="Xuan(this)">淄博</div>
        <div class="list" onclick="Xuan(this)">张店</div>
    </div>
</div>

</body>
<script type="text/javascript">
function Show()
{
    document.getElementById("zi").style.display="block";
}
function Xuan(ys)
{
    var v = ys.innerText;
    
    document.getElementById("xiala").innerText = v;
    
    document.getElementById("zi").style.display="none";
}
</script>
</html>

 

 



 

posted on 2016-09-23 11:30  向前看！明天会更好！  阅读(126)  评论(0)  编辑  收藏  举报