Javascript 如何得到input type=\radio\ 的值？
日期：2022-04-15 栏目：程序人生 浏览：次
<script language="JavaScript">
<!--
function chk()
{
var obj = document.getElementsByName(\'imgposition\');
for (i=0;i<obj.length;i++)
{
if (obj[i].checked)
{
alert(obj[i].value);
return;
}
}
alert(\'你没选\');
}
//-->
</script>
<form name=form1>
<input type="radio" name="imgposition" value="1">
<input type="radio" name="imgposition" value="2">
<input type="radio" name="imgposition" value="3">
</form>
<input type="button" onclick="chk()">
for example:
<INPUT type=radio name="radio" CHECKED>1-10 years old
<INPUT type=radio name="radio">11 years old
<INPUT type=radio name="radio">12-120 years old
This example uses script to detect which radio button the user selects.
<SCRIPT>
function detect()
{
if (radio[0].checked)
alert("You\'re between 1 and 10 years old.")
else if (radio[1].checked)
alert("You\'re 11 years old.")
else
alert("You\'re between 12 and 120 years old.")
}
</SCRIPT>
