例如:
<select name="select">
<option value=111>111</option>
<option value=222>222</option>
</select> 比如, 取value的值, 象JDOM一样的类. 可以查/改/建 属性/元素 ==操作
<select name="select">
<option value=111>111</option>
<option value=222>222</option>
</select> 比如, 取value的值, 象JDOM一样的类. 可以查/改/建 属性/元素 ==操作
<HEAD>
<META http-equiv='Content-Type' content='text/html;charset=gb2312'>
<Meta name='Gemeratpr' content='网络程序员伴侣(Lshdic)2005'>
<TITLE></TITLE>
<STYLE>
*{font-size:12px;color:;}
a{text-decoration:none;}
a:hover{color:red;}
</STYLE>
</HEAD>
<BODY topmargin='2' leftmargin='2'>
<BASE target='_top'>
<SELECT NAME="Cars" SIZE="1">
<OPTION VALUE="1" SELECTED>BMW
<OPTION VALUE="2">PORSCHE
<OPTION VALUE="3" SELECTED>MERCEDES
</SELECT>
<br>
<input type="button" value="add" onclick=add();>
<br>
<input type="button" value="del" onclick=del();>
<br>
<input type="button" value="upd" onclick=upd();>
<input type="text" name="t1" value="">
<SCRIPT language='Jscript'>
function add(){
var oOption = document.createElement("OPTION");
oOption.text="audi";
oOption.value="4";
document.all.Cars.add(oOption);
}function del()
{
var ops = document.all.Cars.options;
for(var i=0;i<ops.length;i++)
{
if(ops(i).value == document.all.Cars.value)
{
document.all.Cars.remove(i);
break;
}
}
}
function upd()
{
var ops = document.all.Cars.options;
for(var i=0;i<ops.length;i++)
{
if(ops(i).value == document.all.Cars.value)
{
ops(i).text = document.all.t1.value;
//ops(i).value = t1.value;
break;
}
}}
</SCRIPT></BODY>
</HTML>