ASP经典列表/菜单if语句

Question

下面是我的ASP经典代码。我有一个问题，当put if else语句像that..actually它不是working..what时，我想做的是，当我选择美国，然后提交它将显示selected USA..default is ALL.sorry，因为我的英语不好。

<% Response.write"<form action=""untitled.asp"" method=""post"">"
   Response.write"<select name=""country"">"
   Response.write"<option selected>ALL</option>"
   Response.write" <option value=""1"" if request(""country"")=""1"" then 
   Response.Write""selected"">USA</option>"
   Response.write" <option value=""2"" if request(""country"")=""2"" then 
   Response.Write""selected"">BRAZIL</option>"
   Response.write"<label>"
   Response.write" <input type=submit name=button id=button value=Submit />"
   Response.write"</label>"
   Response.write"</form>"
%>

谢谢

Answer 1

您的基本语法错误。这是应该怎么做的：

Response.write " <option value=""1"""
If request("country")="1" then 
    Response.Write " selected=""selected"""
End If
Response.Write ">USA</option>"

第二个选项也是如此。要使其更灵活、更具可读性，请使用以下函数：

Function BuildOption(sValue, sRequestKey, sText)
    Dim sHTML
    sHTML = "<option value=""" & sValue & """"
    If Request(sRequestKey)=sValue Then 
        sHTML = sHTML & " selected=""selected"""
    End If
    sHTML = sHTML & ">" & sText & "</option>"
    BuildOption = sHTML
End Function

然后像这样使用它：

Response.write BuildOption("1", "country", "USA")
Response.write BuildOption("2", "country", "BRAZIL")