如何制作动态页面？
在同一个页面上有两个下拉框，现在我想依据一个下拉框所选的内容，使得另外一个下拉框可选的下拉内容是不同的，不知该如何实现呢？ 问题点数：20、回复次数：2Top
1 楼net_lover（【孟子E章】）回复于 2002-05-11 01:34:48 得分 20
<html>
<HEAD>
<title>例子</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<!--代码部分-->
<script language="javascript">
var selects=new Array(new Array(new Option("粮食","粮食"),new Option("油料","油料"), new Option("棉麻烟","棉麻烟"), new Option("蔬菜","蔬菜"),
new Option("水果","水果"),
new Option("水产品","水产品"),
new Option("茶叶","茶叶"),
new Option("副食品","副食品"),
new Option("其它","其它")),
new Array(new Option("农药","农药"),
new Option("化肥","化肥"),
new Option("种子","种子"),
new Option("农机","农机"),
new Option("其它","其它")),
new Array(new Option("原材","原材"),
new Option("种苗","种苗"),
new Option("花卉","花卉"),
new Option("制品","制品"),
new Option("器械","机械"),
new Option("其它","其它")),
new Array( new Option("畜药","畜药"),
new Option("禽药","禽药"),
new Option("鱼药","鱼药"),
new Option("中药材","中药材"),
new Option("其它","其它")));
function chsel()
{
document.f.second.options.length=0;
if(document.f.master.value=="农副")
k=0;
if(document.f.master.value=="农资")
k=1;
if(document.f.master.value=="林水")
k=2;
if(document.f.master.value=="药材")
k=3;
for(var i=0;i<selects[k].length;i++)
document.f.second.add(selects[k][i]);
}
</script>
<!-- 代码部分-->
</head>
<body topmargin="0" leftmargin="0" marginweight="0" marginheight="0" bgcolor="#0099FF" oncontextmenu="return false;"><p> </p>
<P align=center>
<form name=f>
<!-- 代码部分 -->
<SELECT name=master onchange="chsel();">
<Option value="农副">农副</Option>
<Option value="农资">农资</Option>
<Option value="林水">林水</Option>
<Option value="药材">药材</Option>
</SELECT>
<SELECT name=second>
<Option value="粮食">粮食</Option>
<Option value="油料">油料</Option>
<Option value="棉麻烟">棉麻烟</Option>
<Option value="蔬菜">蔬菜</Option>
<Option value="水果">水果</Option>
<Option value="水产品">水产品</Option>
<Option value="茶叶">茶叶</Option>
<Option value="副食品">副食品</Option>
<Option value="其它">其它</Option>
</SELECT>
<!--代码部分-->
</form>
</p>
</center>
</body>
</html>
Top
2 楼zhenhao（轻松XP）回复于 2002-05-11 08:16:50 得分 0
学习：）我以前只会用vb做：）Top
