写一个js函数，方法内容为分别alert出当前页面<select>组件onchage时option的text和value值我是小菜鸟，在这边先谢谢大家咯
3 回答
潇湘沐
TA贡献1816条经验 获得超6个赞
function A(){
var obj = document.getElementById(”select_id”); //selectid
var index = obj.selectedIndex; // 选中索引
var text = obj.options[index].text; // 选中文本
var value = obj.options[index].value; // 选中值
alert("text="+text+"value="+value)
}
慕后森
TA贡献1802条经验 获得超5个赞
<script language="javascript">
function changeSelect(thisObj){
alert(thisObj.value);
}
</script>
<select name="selectName" onChange="javascript:changeSelect(this)">
<option value="name">名字</option>
<option value="sex">性别</option>
</select>
BIG阳
TA贡献1859条经验 获得超6个赞
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript">
<!--
function myfunction()
{
var obj = document.getElementById("select_id"); //selectid
var index = obj.selectedIndex;
var txt = obj.options[index].text;
var val= obj.options[index].value;
alert("txt="+text+"value="+val);
}
//-->
</SCRIPT>
<form id="form1" name="form1" action="aaa.php" method="post">
<select id="select_id" name="select1" onChange="javascript:myfunction()">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
</form>
</BODY>
</HTML>
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