HMTL:
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body onload="Getcity();">
<form id="form1" runat="server">
<div>
省份：<select id="Province" onchange="Getcity();">
<option value="0">河南省</option>
<option value="1">江西省</option>
</select>
市：<select id="city"></select>
</div>
</form>
</body>
</html>
脚本：
<script language="javascript" >
var citylist=new Array();
citylist[0]=new Array("0","郑州","洛阳","南阳");
citylist[1]=new Array("1","南昌","宜春","上饶");
function Getcity()
{
form1.city.lenght=0;
var Selectvalue= parseInt(form1.Province.value);
for(var i=0;i<citylist[0].length;i++)
{
form1.city.options[i]=new Option(citylist[Selectvalue][i+1],citylist[Selectvalue] [i+1]);
}
}
</script>
然后再Onload="Getcity();",加载页面设置 ,至于省市少了就自己加了
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body onload="Getcity();">
<form id="form1" runat="server">
<div>
省份：<select id="Province" onchange="Getcity();">
<option value="0">河南省</option>
<option value="1">江西省</option>
</select>
市：<select id="city"></select>
</div>
</form>
</body>
</html>
脚本：
<script language="javascript" >
var citylist=new Array();
citylist[0]=new Array("0","郑州","洛阳","南阳");
citylist[1]=new Array("1","南昌","宜春","上饶");
function Getcity()
{
form1.city.lenght=0;
var Selectvalue= parseInt(form1.Province.value);
for(var i=0;i<citylist[0].length;i++)
{
form1.city.options[i]=new Option(citylist[Selectvalue][i+1],citylist[Selectvalue] [i+1]);
}
}
</script>
然后再Onload="Getcity();",加载页面设置 ,至于省市少了就自己加了
