一.选项卡效果
| <!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{ 240px; height:30px;} | |
| .list{ 60px; height:30px; float:left; text-align:center; line-height:30px; vertical-align:middle;} | |
| .list:hover{ cursor: pointer} | |
| .nr{ 240px; height:200px; text-align:center; line-height:200px; vertical-align:middle} | |
| </style> | |
| </head> | |
| <body> | |
| <div style="700px; height:500px; margin-top:30px"> | |
| <div id="menu"> | |
| <div class="list" style="background-color:#0F0" onclick="Show('d1')">娱乐</div> | |
| <div class="list" style="background-color:#369" onclick="Show('d2')">社会</div> | |
| <div class="list" style="background-color:#F60" onclick="Show('d3')">体育</div> | |
| <div class="list" style="background-color:#CC3" onclick="Show('d4')">军事</div> | |
| </div> | |
| <div id="d1" class="nr" style="background-color:#3C0"> | |
| 娱乐新闻 | |
| </div> | |
| <div id="d2" class="nr" style="background-color:#399; display:none"> | |
| 社会新闻 | |
| </div> | |
| <div id="d3" class="nr" style="background-color:#F30; display:none"> | |
| 体育新闻 | |
| </div> | |
| <div id="d4" class="nr" style="background-color:#CF3; display:none"> | |
| 军事新闻 | |
| </div> | |
| </div> | |
| </body> | |
| <script type="text/javascript"> | |
| function Show(id) | |
| { | |
| //隐藏所有 | |
| var attr = document.getElementsByClassName("nr"); | |
| for(var i=0;i<attr.length;i++) | |
| { | |
| attr[i].style.display = "none"; | |
| } | |
| //显示当前的 | |
| document.getElementById(id).style.display = "block"; | |
| } | |
| </script> | |
| </html> | |
效果图
第二个题.
图片轮播
<!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; font-family:微软雅黑; font-size:14px;}
</style>
</head>
<body>
<div style="1000px; height:250px; margin-top:30px">
<img src="img/11.jpg" width="1000" height="250" />
<img src="img/22.png" width="1000" height="250" style="display:none" />
<img src="img/33.png" width="1000" height="250" style="display:none" />
<img src="img/44.png" width="1000" height="250" style="display:none" />
</div>
</body>
<script type="text/javascript">
window.setInterval("Huan()",2000);
//找到图片的最大索引
var n = document.getElementsByTagName("img").length-1;
//存当前图片
var d =0;
//换图
function Huan()
{
//找到所有图片
var attr = document.getElementsByTagName("img");
//当前索引加1
d++;
//判断索引是否超出范围
if(d>n)
{
d = 0;
}
//换图
//让所有隐藏
for(var i=0;i<=n;i++)
{
attr[i].style.display = "none";
}
//让该索引的显示
attr[d].style.display = "block";
}
</script>
</html>