<!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> <title>Java Script</title>
<script language="javascript" type="text/javascript">
<!-- function DoWork()
{
var TextArray = Text1.value.split(","); for(i = 0; i < TextArray.length; i ++) { var option = document.createElement("Option"); option.text = TextArray[i]; option.value = TextArray[i]; Select1.add(option);
} } //-->
</script></head><body> <input id="Text1" type="text" value="1,2,3" /><br /> <input id="Button1" type="button" value="以,号分割文本框内容并添加到下拉列表" onclick="DoWork();" /><br /> <select id="Select1"> <option selected="selected">准备添加</option> </select></body></html>