寫一個js函數(shù)，方法內(nèi)容為分別alert出當(dāng)前頁面<select>組件onchage時option的text和value值我是小菜鳥，在這邊先謝謝大家咯
3 回答
瀟湘沐
TA貢獻(xiàn)1816條經(jīng)驗 獲得超6個贊
function A(){
var obj = document.getElementById(”select_id”); //selectid
var index = obj.selectedIndex; // 選中索引
var text = obj.options[index].text; // 選中文本
var value = obj.options[index].value; // 選中值
alert("text="+text+"value="+value)
}
慕后森
TA貢獻(xiàn)1802條經(jīng)驗 獲得超5個贊
<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">性別</option>
</select>
BIG陽
TA貢獻(xiàn)1859條經(jīng)驗 獲得超6個贊
<!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>
添加回答
舉報
0/150
提交
取消