求助,如何用循环向From的Select加入新的Option?

loujinmiao 2010-04-05 04:07:21

只运行第一行,就报错了.那位大侠帮我看看错在哪里?

function selectadd(){

var s=document.getElementById("yearQ");

var soption=document.createElement("OPTION");

//soption.value="a";

//soption.text="aa"

for(var i=0;i<=30;i++){

soption.value=i

soption.text="共"+i+"年,共"+i*12+"期"

s.add(soption);

}

}

...全文

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shan1119 2010-04-05

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test:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>无h・文档</title>

</head>



<body>

<script language=javascript>

function selectadd(){

   var s=document.getElementById("yearQ");

   var soption=document.createElement("OPTION");

   //soption.value="a";

   //soption.text="aa"

   for(var i=0;i<=30;i++){

     soption.value=i

     soption.text="共"+i+"年,共"+i*12+"期"

     s.add(new Option(soption.text,soption.value));

   }

}



  

</script>

<select id="yearQ"></select>

<input name="" type="button" onclick="selectadd()"  height="20"/>

</body>

</html>

shan1119 2010-04-05

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<script language=javascript>

function selectadd(){

   var s=document.getElementById("yearQ");

   var soption=document.createElement("OPTION");

   //soption.value="a";

   //soption.text="aa"

   for(var i=0;i<=30;i++){

     soption.value=i

     soption.text="共"+i+"年,共"+i*12+"期"

     s.add(new Option(soption.text,soption.value));

   }

}



  

</script>