再看看:<%
String place="合肥";
place=request.getParameter("select");
out.print(place);
place=Util.codeString(place);
out.print(place);
%>
<form name="form1" method="post" action="">
<select name="select">
<option selected>合肥</option>
<option>北京</option>
<option>上海</option>
<option>广州</option>
<option>重庆</option>
</select>
<input type="submit" name="Submit" value="提交">
</form>
String place="合肥";
place=request.getParameter("select");
out.print(place);
place=Util.codeString(place);
out.print(place);
%>
<form name="form1" method="post" action="">
<select name="select">
<option selected>合肥</option>
<option>北京</option>
<option>上海</option>
<option>广州</option>
<option>重庆</option>
</select>
<input type="submit" name="Submit" value="提交">
</form>
String place="";
try
{
place=request.getParameter("select");
out.print(place);
place=Util.codeString(place);
out.print(place);
}
catch(Exception e){System.out.println(e);}
%>
<form name="form1" method="post" action="">
<select name="select">
<option value="合肥" selected>合肥</option>
<option value="北京">北京</option>
<option value="上海">上海</option>
</select>
<input type="submit" name="Submit" value="提交">
</form>
<form name="form1" method="post" action="">
<select name="select">
<option selected>合肥</option>
<option value="北京">北京</option>
<option value="上海">上海</option>
<option value="广州">广州</option>
<option value="重庆">重庆</option>
</select>
要不然就这样
String place="";
place=request.getParameter("select");
if(place.length()==0){place="合肥";}
用document.all.select.value不行吗.