html中select不能正常显示的问题_html/css_WEB-ITnose

代码如下：
<%@ page contentType="text/html; charset=utf-8" language="java"

import="java.sql.*,java.awt.*,java.awt.image.*,java.util.*,javax.imageio.*,java.net.*,javax.imageio.*,java.io.*" errorPage="" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>








<%
request.setAttribute("decorator", "none");
response.setHeader("Cache-Control","no-cache"); //HTTP 1.1
response.setHeader("Pragma","no-cache"); //HTTP 1.0
response.setDateHeader ("Expires", 0); //prevents caching at the proxy server
%>











<%String yanzheng=(String)session.getAttribute("rand") ;
session.setAttribute("rand",yanzheng);
%>