javascript网页设计源代码,网页设计成品源代码
大家好,今天来为大家分享javascript网页设计源代码的一些知识点,和网页设计成品源代码的问题解析,大家要是都明白,那么可以忽略,如果不太清楚的话可以看看本篇文章,相信很大概率可以解决您的问题,接下来我们就一起来看看吧!
如何用javascript修改html代码
1.随便进一个网页。
2.把这段代码打到浏览器中javascript:document.body.contentEditable='true';document.designMode='on';void0。
3.然后,修改想改的内容。
4.输入javascript:document.body.contentEditable='false';void0进行保存。
扩展资料
代码是程序员用开发工具所支持的语言写出来的源文件,是一组由字符、符号或信号码元以离散形式表示信息的明确的规则体系。
代码设计的原则包括唯一确定性、标准化和通用性、可扩充性与稳定性、便于识别与记忆、力求短小与格式统一以及容易修改等。源代码是代码的分支,某种意义上来说,源代码相当于代码。
1.随便进一个网页
2.把这段代码打到浏览器中javascript:document.body.contentEditable='true';document.designMode='on';void0
3.然后修改想改的内容
最后输入javascript:document.body.contentEditable='false';void0进行保存就可以了。
求个简单javascript代码 谢谢,网站菜单功能
不用说自己菜不菜的,能有这个学习的精神已经很值得鼓励了
呵呵,下面,我来给你介绍几个网站常见的菜单
第一个:仿网易的滑动门导航菜单
<html xmlns="">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"/>
<title>仿网易的滑动门技术,用DIV+CSS技术实现</title>
<style type="text/css">
<!--
#header{
background-color:#F8F4EF;
height: 200px;
width: 400px;
margin: 0px;
padding: 0px;
border: 1px solid#ECE1D5;
font-family:"宋体";
font-size: 12px;
}
#menu{
margin: 0px;
padding: 0px;
list-style-type: none;
}
#menu li{
display: block;
width: 100px;
text-align: center;
float: left;
margin: 0px;
padding-top: 0.2em;
padding-right: 0px;
padding-bottom: 0.2em;
padding-left: 0px;
cursor: hand;
}
.sec1{ background-color:#FFFFCC;}
.sec2{ background-color:#00CCFF;}
.block{ display: block;}
.unblock{ display: none;}
-->
</style>
</head>
<body>
<script language=javascript>
function secBoard(n)
{
for(i=0;i<menu.childNodes.length;i++)
menu.childNodes[i].className="sec1";
menu.childNodes[n].className="sec2";
for(i=0;i<main.childNodes.length;i++)
main.childNodes[i].style.display="none";
main.childNodes[n].style.display="block";
}
</script>
<div id="header">
<ul id="menu">
<li onMouseOver="secBoard(0)" class="sec2">最新新闻</li>
<li onMouseOver="secBoard(1)" class="sec1">最新文章</li>
<li onMouseOver="secBoard(2)" class="sec1">最新日志</li>
<li onMouseOver="secBoard(3)" class="sec1">论坛新帖</li>
</ul>
<!--内容显示区域-->
<ul id="main">
<li class="block">第一个内容</li>
<li class="unblock">第二个内容</li>
<li class="unblock">第三个内容</li>
<li class="unblock">第四个内容</li>
</ul>
<!--内容显示区域-->
</div>
</body>
</html>
这里基本上是使用Css与Div的结合,在整个布局中已层为单位,实行滑动菜单的是一个javascript脚本函数,调用就可以了,看不懂不要紧,日渐积累才是重要
第二个:经典实用的触发型导航(这是鼠标单击事件控制)
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>网页特效代码|JsCode.CN|---经典实用的触发型导航菜单</title>
</head>
<body>
<STYLE type=text/css>.sec1{
BORDER-RIGHT: gray 1px solid; BORDER-TOP:
#ffffff 1px solid; BORDER-LEFT:#ffffff 1px
solid; CURSOR: hand; COLOR:#000000; BORDER-
BOTTOM:#ffffff 1px solid; BACKGROUND-COLOR:
#eeeeee
}
.sec2{
BORDER-RIGHT: gray 1px solid; BORDER-TOP:
#ffffff 1px solid; FONT-WEIGHT: bold; BORDER-
LEFT:#ffffff 1px solid; CURSOR: hand; COLOR:
#000000; BACKGROUND-COLOR:#d4d0c8
}
.main_tab{
BORDER-RIGHT: gray 1px solid; BORDER-
LEFT:#ffffff 1px solid; COLOR:#000000; BORDER-
BOTTOM: gray 1px solid; BACKGROUND-COLOR:#d4d0c8
}
</STYLE>
<!--JavaScript部分-->
<SCRIPT language=javascript>
function secBoard(n)
{
for(i=0;i<secTable.cells.length;i++)
secTable.cells
[i].className="sec1";
secTable.cells[n].className="sec2";
for(i=0;i<mainTable.tBodies.length;i++)
mainTable.tBodies
[i].style.display="none";
mainTable.tBodies
[n].style.display="block";
}
</SCRIPT>
<!--HTML部分-->
<TABLE id=secTable cellSpacing=0 cellPadding=0 width=549 border=0>
<TBODY>
<TR align=middle height=20>
<TD class=sec2 onclick=secBoard(0) width="10%">关于TBODY标记</TD>
<TD class=sec1 onclick=secBoard(1) width="10%">关于cells集合</TD>
<TD class=sec1 onclick=secBoard(2) width="10%">关于tBodies集合</TD>
<TD class=sec1 onclick=secBoard(3) width="10%">关于display属性</TD></TR></TBODY></TABLE>
<TABLE class=main_tab id=mainTable height=240 cellSpacing=0 cellPadding=0 width=549 border=0><!--关于TBODY标记-->
<TBODY style="DISPLAY: block">
<TR>
<TD vAlign=top align=middle><BR><BR>
<TABLE cellSpacing=0 cellPadding=0 width=490 border=0>
<TBODY>
<TR>
<TD>指定行做为表体。
<BR>注释:TBODY要素是块要素,并且需要结束标
签。<BR>即使如果表格没有显式定义TBODY
要素,该要素也提供给所有表。<BR><BR>
参考:《动态HTML参考和开发应用大全》(人民邮电出
版社
Microsoft Corporation著
北京华中兴业科技发展有限公司
译)
<BR><BR></TD></TR></TB
ODY></TABLE></TD></TR></T
BODY><!--关于cells集合-->
<TBODY style="DISPLAY:
none">
<TR>
<TD vAlign=top
align=middle><BR><BR>
<TABLE cellSpacing=0
cellPadding=0 width=490 border=0>
<TBODY>
<TR>
<TD>检索表行或者整个
表中所有单元格的集合。<BR>应用于TR、TABLE。
<BR><BR>参考:《动态HTML参考和开发应
用大全》(人民邮电出版社
Microsoft Corporation著
北京华中兴业科技发展有限公司
译)
<BR><BR></TD></TR></TB
ODY></TABLE></TD></TR></T
BODY><!--关于tBodies集合-->
<TBODY style="DISPLAY:
none">
<TR>
<TD vAlign=top
align=middle><BR><BR>
<TABLE cellSpacing=0
cellPadding=0 width=490 border=0>
<TBODY>
<TR>
<TD>检索表中所有TBODY
对象的集合。对象在该集合中按照HTML源顺序排列。
<BR>应用于TABLE。<BR><BR>参考:
《动态HTML参考和开发应用大全》(人民邮电出版社
Microsoft Corporation著
北京华中兴业科技发展有限公司
译)
<BR><BR></TD></TR></TB
ODY></TABLE></TD></TR></T
BODY><!--关于display属性-->
<TBODY style="DISPLAY:
none">
<TR>
<TD vAlign=top
align=middle><BR><BR>
<TABLE cellSpacing=0
cellPadding=0 width=490 border=0>
<TBODY>
<TR>
<TD>设置或者检索对象
是否被提供。<BR>可能的值为block、none、
inline、list-item、table-header-group、table-
footer-group。<BR>该特性可读写,块要素默认
值为block,内联要素默认值为inline;层叠样式表
(CSS)属性不可继承。<BR><BR>参考:《
动态HTML参考和开发应用大全》(人民邮电出版社
Microsoft Corporation著
北京华中兴业科技发展有限公司译)
<BR><BR><A
rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target=_blank>点击此处
</A>可参阅微软<A rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target=_blank>MSDN在线</A>上的解释。
</TD></TR></TBODY></TABLE>
;</TD></TR></TBODY></TABLE&g
t;</body>
</html>
这里跟上面不同的区别在与这是鼠标移动和滑动的事件区别!
第三个:仿拍拍的切换效果菜单(里面的图片是我放上去的,所以会看不到图片的,呵呵继续)
<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""">
<html xmlns="" lang="zh-CN">
<head>
<meta http-equiv="Content-Language" content="zh-cn"/>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"/>
<meta name="robots" content="all"/>
<title>网页特效|网页特效代码(JsHtml.cn)---仿拍拍paipai.com首页产品图片随机轮显切换效果</title><style>
body{font-size:12px}
img{border:0px}
#sale{right:206px;top:0;width:260px;background:#fff}
#saleTitle{text-align:right;padding-top:5px;padding-right:5px;width:255px;height:20px;background:url("images/saleTitle.gif") no-repeat}
#saleList{margin-top:5px}
#saleList.saleTwo{height:108px;background:url("images/salelineH.gif") bottom repeat-x;}
#saleList a{display:block;height:108px;width:86px;text-align:center;float:left;overflow:hidden}
#saleList a.saleItem{background:url("images/salelineV.gif") right repeat-y;}
#saleList a img{margin:5px 0}
#saleList a:hover{background-color:#EBFFC5}
</style>
<script type="text/javascript">
rnd.today=new Date();
rnd.seed=rnd.today.getTime();
function rnd(){
rnd.seed=(rnd.seed*9301+49297)% 233280;
return rnd.seed/(233280.0);
}
function rand(number){
return Math.ceil(rnd()*number)-1;
}
function nextSale(order){
if(order=="up") saleNum--;
else saleNum++;
if(saleNum>2) saleNum=0
else if(saleNum<0) saleNum=2;
//alert(saleNum);
for(i=0;i<3;i++)
document.getElementById("saleList"+i).style.display="none";
document.getElementById("saleList"+saleNum).style.display="";
}
</script>
</head>
<body>
<div id="sale" class="absolute overflow">
<div id="saleTitle" class="absolute">
<a rel="external nofollow" href="javascript:nextSale('up')" title="点击到上一屏">
<img src="images/saleFore.gif" hspace="4" onmouseover="this.src='images/saleForeOver.gif'" onmouseout="this.src='images/saleFore.gif'"/></a><a rel="external nofollow" href="javascript:nextSale('down')" title="点击到下一屏"><img src="images/saleNext.gif" onmouseover="this.src='images/saleNextOver.gif'" onmouseout="this.src='images/saleNext.gif'"/></a></div>
<div class="overflow" style="height:330px" id="saleList">
<script type="text/javascript">var saleNum=rand(3);</script>
<div id="saleList0" style="display:none">
<div class="saleTwo">
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="圣诞浪漫饰品超级大促" src="/jsimages/UploadFiles_3321/200804/20080423085515804.jpg" width="65" height="65"/></div>
<div>
圣诞浪漫饰品<br/>
超级大促</div>
</a>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="摄像头集结号给你新的感觉" src="/jsimages/UploadFiles_3321/200804/20080423085516472.jpg" width="65" height="65"/></div>
<div>
摄像头集结号<br/>
给你新的感觉</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="好感度提升韩版娃娃装" src="/jsimages/UploadFiles_3321/200804/20080423085516162.jpg" width="65" height="65"/></div>
<div>
好感度提升<br/>
韩版娃娃装</div>
</a></div>
<div class="saleTwo">
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="复古牛仔外套特惠119元起" src="/jsimages/UploadFiles_3321/200804/20080423085516293.jpg" width="65" height="65"/></div>
<div>
复古牛仔外套<br/>
特惠119元起</div>
</a>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="圣诞拍拍特供运动服3折" src="/jsimages/UploadFiles_3321/200804/20080423085516802.jpg" width="65" height="65"/></div>
<div>
圣诞拍拍特供<br/>
运动服3折</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="摄像头集结号给你新的感觉" src="/jsimages/UploadFiles_3321/200804/20080423085516472.jpg" width="65" height="65"/></div>
<div>
摄像头集结号<br/>
给你新的感觉</div>
</a></div>
<div>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="圣诞拍拍特供电脑周边4折" src="/jsimages/UploadFiles_3321/200804/20080423085516530.jpg" width="65" height="65"/></div>
<div>
圣诞拍拍特供<br/>
电脑周边4折</div>
</a>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="party扮靓甜美腮红" src="/jsimages/UploadFiles_3321/200804/20080423085516658.jpg" width="65" width="65" height="65"/></div>
<div>
party扮靓<br/>
甜美腮红</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="好感度提升韩版娃娃装" src="/jsimages/UploadFiles_3321/200804/20080423085516162.jpg" width="65" height="65"/></div>
<div>
好感度提升<br/>
韩版娃娃装</div>
</a></div>
</div>
<div id="saleList1" style="display:none">
<div class="saleTwo">
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="新奇好玩便宜尽在网游频道" src="/jsimages/UploadFiles_3321/200804/20080423085516612.jpg" width="65" height="65"/></div>
<div>
新奇好玩便宜<br/>
尽在网游频道</div>
</a>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="展现高贵气质骑士系马靴" src="/jsimages/UploadFiles_3321/200804/20080423085516202.jpg" width="65" height="65"/></div>
<div>
展现高贵气质<br/>
骑士系马靴</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="摄像头集结号给你新的感觉" src="/jsimages/UploadFiles_3321/200804/20080423085516472.jpg" width="65" height="65"/></div>
<div>
摄像头集结号<br/>
给你新的感觉</div>
</a></div>
<div class="saleTwo">
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="永不过时条纹毛衣" src="/jsimages/UploadFiles_3321/200804/20080423085516984.jpg" width="65" height="65"/></div>
<div>
永不过时<br/>
条纹毛衣</div>
</a>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="圣诞拍拍特供运动鞋2折" src="/jsimages/UploadFiles_3321/200804/20080423085516651.jpg" width="65" height="65"/></div>
<div>
圣诞拍拍特供<br/>
运动鞋2折</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="好感度提升韩版娃娃装" src="/jsimages/UploadFiles_3321/200804/20080423085516162.jpg" width="65" height="65"/></div>
<div>
好感度提升<br/>
韩版娃娃装</div>
</a></div>
<div>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="精简唯美索爱K630" src="/jsimages/UploadFiles_3321/200804/20080423085516302.jpg" width="65" height="65"/></div>
<div>
精简唯美<br/>
索爱K630</div>
</a>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="原装瑞士军刀精选" src="/jsimages/UploadFiles_3321/200804/20080423085516549.jpg" width="65" width="65" height="65"/></div>
<div>
原装瑞士军刀<br/>
精选</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
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<img alt="超薄机身索爱W880" src="/jsimages/UploadFiles_3321/200804/20080423085516711.jpg" width="65" height="65"/></div>
<div>
超薄机身<br/>
索爱W880</div>
</a></div>
</div>
<div id="saleList2" style="display:none">
<div class="saleTwo">
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="各就各味秋冬饮食计划" src="/jsimages/UploadFiles_3321/200804/20080423085516704.jpg&type=3" width="65" height="65"/></div>
<div>
各就各味<br/>
秋冬饮食计划</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="好感度提升韩版娃娃装" src="/jsimages/UploadFiles_3321/200804/20080423085516162.jpg" width="65" height="65"/></div>
<div>
好感度提升<br/>
韩版娃娃装</div>
</a></div>
<div class="saleTwo">
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="圣诞拍拍特供随身视听5折" src="/jsimages/UploadFiles_3321/200804/20080423085516375.jpg" width="65" height="65"/></div>
<div>
圣诞拍拍特供<br/>
随身视听5折</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="超薄机身索爱W880" src="/jsimages/UploadFiles_3321/200804/20080423085516711.jpg" width="65" height="65"/></div>
<div>
超薄机身<br/>
索爱W880</div>
</a></div>
<div>
<a class="saleItem" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="我爱我家家居大抢购" src="/jsimages/UploadFiles_3321/200804/20080423085516954.jpg" width="65" height="65"/></div>
<div>
我爱我家<br/>
家居大抢购</div>
</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="" target="_blank">
<div>
<img alt="超值彩妆套装变身派对女王" src="/jsimages/UploadFiles_3321/200804/20080423085516919.jpg" width="65" width="65" height="65"/></div>
<div>
超值彩妆套装<br/>
变身派对女王</div>
</a></div>
</div>
</div>
</div>
<script type="text/javascript">document.getElementById("saleList"+saleNum).style.display="";</script>
<p></p>
<p>更多网页特效代码尽在<a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="">网页特效代码</a></p>
</body>
</html>
这个仿拍拍基本上就是2层放图片,但用起来的效果还是可以的,如果不喜欢我还有下面呢,慢慢学,总会看懂的(最重要的还是Css哦)
这个主要就是让层实现隐藏我觉得这个在层使用方面还是好的
从总体上看,在实现层与层之间的交互,在其代码我觉得你有必要去认真看下!
以上是我介绍额度菜单,虽然不是很强大,但是却很使用,而且在J2EE中
菜单基本上是一个假象,都是用层与Css之间的特效做出来的!
学会了层的具体应用,我相信你也可以有自己特色的菜单的
那我祝你好运咯!!加油!!
如果网页内容是由javascript生成的,应该怎么实现爬虫
对于提到的两种方法,抓包分析获取请求的参数和驱动浏览器内核执行 js代码,两种方法各有优点,选择适合你的方式就好。
抓包分析,这个方法的优点是抓取的速度快,取得数据结构比较好,处理起来简单,很多是 json格式的数据,但是抓包分析需要大量的时间,这里的时间是指需要模拟需要获取数据的之前的一个或者几个请求,涉及到 headers里的很多参数,有时候还设计到数据加密,这个过程你可能需要读 js源码,才能解决问题。所以这个方式适合那些请求参数较少,数据结构比较好的网站。
2.驱动浏览器内核,这个方法的优点是编程实现比较简单,只要学会了驱动浏览器的 api就可以在很少的改动下用于很多不同网站的抓取。但是缺点也很明显,慢,占用的资源比较多,不如抓包分析获取数据灵活。
我以前抓取的好多网站都是用抓包分析的方式,还分析了好多网站的登录的机制,用 Python重写 js的请求,做模拟登录,对于抓包分析有些偏执,但是我现在的观点是:用最少的时间成本来解决问题,这里的时间成本是指编程时间和抓取的时间之和。当然你如果是学习的话,我建议两种方式都学。
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