<html>
<head>
</head>
<body>
<form name=form1>
<input type=text name=textbox><br>
<select name=select1 onChange="alert(selection);selection1()">//行6,错误:对象不支持此操作
<option>a
<option>b
<option>c
<option>d
</select>
</form>
<script language=javascript>
function selection1()
{
alert("看到了刚才的那个弹出框了么:selection已经是一个对象!");
document.form1.textbox.value="your chose selection"+(document.form1.select1.selectedIndex+1)
}
</script>
<p>大家快帮我看看吧。
</body>
</html>
<head>
</head>
<body>
<form name=form1>
<input type=text name=textbox><br>
<select name=select1 onChange="alert(selection);selection1()">//行6,错误:对象不支持此操作
<option>a
<option>b
<option>c
<option>d
</select>
</form>
<script language=javascript>
function selection1()
{
alert("看到了刚才的那个弹出框了么:selection已经是一个对象!");
document.form1.textbox.value="your chose selection"+(document.form1.select1.selectedIndex+1)
}
</script>
<p>大家快帮我看看吧。
</body>
</html>
改成sss
<html>
<head>
</head>
<body>
<form name="form1">
<br>
<select name="select1" onChange="sss();">//行6,错误:对象不支持此操作
<option>a
<option>b
<option>c
<option>d
</select><INPUT TYPE="text" NAME="textbox">
</form>
<script language=javascript>
function sss()
{
document.form1.elements['textbox'].value="123"+(document.form1.select1.selectedIndex+1)
}
</script>
</body>
</html>