⭐ 欢迎来到虫虫下载站！ | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站
📤 上传资源

📄 19.2.htm

📁 这是我卖的书上的源码 这书是电子邮电出版的是有关网络编程 有详细的例子
💻 HTM
字号:
🔍 
<!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>
<title>Select Navigation</title>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<style type="text/css">
<!--
   .nochoice {color: black;}
   .choice   {color: blue;}
-->
</style>
<script type="text/javascript">
<!--
function redirect(pulldown)
{
  var newLocation = pulldown[pulldown.selectedIndex].value;
  if (newLocation != "")
    self.location = newLocation;
}

function resetIfBlank(pulldown)
{
  var possibleNewLocation = pulldown[pulldown.selectedIndex].value;
  if (possibleNewLocation == "")
    pulldown.selectedIndex = 0;   // reset to start since no navigation
}
//-->
</script>
</head>
<body>
<center>
<h1>改进的下拉菜单<h1>
<form name="navform" id="navform" action="redirector.cgi" method="post">
<h3>友情链接:</h3>
<select name="menu" id="menu" onchange="resetIfBlank(this);">
<option value="" class="nochoice" selected="selected">选择站点</option>
<option value="" class="nochoice"></option>
<option value="" class="nochoice">搜索引擎</option>
<option value="" class="nochoice">---------------------------</option>
<option value="http://www.google.com" class="choice">Google</option>
<option value="http://www.yahoo.com" class="choice">Yahoo!</option>
<option value="http://www.baidu.com" class="choice">百度</option>
<option value="" class="nochoice"></option>
<option value="" class="nochoice">电子商务</option>
<option value="" class="nochoice">---------------------------</option>
<option value="http://www.amazon.com" class="choice">Amazon</option>
<option value="http://www.buy.com" class="choice">Buy.com</option>
<option value="" class="nochoice"></option>
<option value="" class="nochoice">Demos</option>
<option value="" class="nochoice">---------------------------</option>
<option value="http://www.democompany.com" class="choice">DemoCompany</option>
</select>
<input type="submit" value="Go"
       onclick="redirect(document.navform.menu); return false;">
</form>
</center>
<script type="text/javascript">
<!--
document.navform.menu.selectedIndex = 0;
//-->
</script>
</body>
</html>

⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -