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为下拉列表增加选项
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應(yīng)用createElement()方法創(chuàng)建下拉列表元素時，將參數(shù)設(shè)置為select即可，然后再創(chuàng)建參數(shù)名為option的下拉列表選項，并應(yīng)用創(chuàng)建的SELECT對象的appendChild()方法將OPTION選項添加到下拉列表中
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>為下拉列表增加選項 </title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--><style type="text/css">table{font-size: 14px;}</style><script type="text/javascript">function createSelect(){var selectObj = document.createElement("select");var str = ["吉林","遼寧","黑龍江","北京","上海","天津","河南","河北","山東","山西","江蘇","安徽","云南"];for(var i=0;i<10;i++){var op = document.createElement("option");op.innerHTML=str[i];selectObj.appendChild(op);}document.getElementById("test").appendChild(selectObj);}</script></head><body "createSelect()"><table background="bg.bmp" width="270" height="200"><tr><td align="center">【為下拉列表增加選項】 </td></tr><tr><td id="test" align="center">籍貫：</td></tr><tr><td id="test" align="center" height="50"></td></tr></table></body>
</html>
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