简单问题？？？

dragon2002 2002-09-20 11:38:30

<HTML>
<HEAD>
<TITLE>测试！</TITLE>
<script>
function ChangeItem(){ 如何实现<option value="20" selected>20</option>或者<option value="0" selected >不好</option>
}
</script>
</HEAD>
<BODY onload=ChangeItem()>
<form name="form1" method="post" action="" ID="Form1">
<select name="select1"ChangeItem()" ID="Select1">
<option value="1">好</option>
<option value="0">不好</option>
</select>
<select name="select2" ID="Select2">
<option value="10" >10</option>
<option value="20">20</option>
<option value="30">30</option>
<option value="40">40</option>
</select>
</form>
</BODY>
</HTML>

...全文

65 6 打赏收藏转发到动态举报

写回复

用AI写文章

6 条回复

切换为时间正序

请发表友善的回复…

发表回复

superkiller 2002-09-20

打赏
举报

什么意思？

scent 2002-09-20

打赏
举报

？？？

saucer 2002-09-20

打赏
举报

what is the question? if you want to change the selection for Select2 based on the selection for Select1, try something like

<HTML>
<HEAD>
<TITLE>测试！</TITLE>
<script language="javascript">
function ChangeItem()
{
var sel = document.form1.select1;
var n = sel.selectedIndex;
if (n == 0)
document.form1.select2.selectedIndex = 0;
else if (n==1)
document.form1.select2.selectedIndex = 3;
}
</script>
</HEAD>
<BODY onload="ChangeItem()">
<form name="form1" method="post" action="" ID="Form1">
<select name="select1" onchange="ChangeItem()" ID="Select1">
<option value="1">好</option>
<option value="0">不好</option>
</select>
<select name="select2" ID="Select2">
<option value="10" >10</option>
<option value="20">20</option>
<option value="30">30</option>
<option value="40">40</option>
</select>
</form>
</BODY>
</HTML>

dragon2002 2002-09-20