ASP:Cookie使用指南(3)

    这里有另外一个简单的例子：当访问者第１次浏览某个站点时，向他们显示欢迎信息。代码如下：
  
  < %@ LANGUAGE="VBSCRIPT" % >
  
  < %
  
  RequestName = Request.Form("Name")
  
  RequestLeaveMeAlone = Request.Form("LeaveMeAlone")
  
  If　 RequestName < >"" or RequestLeaveMeAlone < >"" 　then
  
  Response.Cookies("MySiteVisitorName") = RequestName
  
  Response.Cookies("MySiteVisitorName").Expires = #January 01, 2010#
  
  Response.Cookies("MySiteLeaveMeAlone") = RequestLeaveMeAlone
  
  Response.Cookies("MySiteLeaveMeAlone").Expires = #January 01, 2010#
  
  End if
  
  VisitorName = request.cookies("MySiteVisitorName")
  
  LeaveMeAlone = request.cookies("MySiteLeaveMeAlone")
  
  If VisitorName ="" and LeaveMeAlone ="" then
  
  % >
  
  < HTML > < HEAD > < /HEAD >
  
  < body bgcolor="#ccffff" text="black" link="navy" vlink="purple" >
  
  < DIV ALIGN="CENTER" >
  
  < form action="index.ASP" method="POST" >
  
  < H2 >Let's be friends< /H2 >
  
  What's your name (leave blank and hit the Submit button if you don't want us to know)?
  
  < input type="text" name="name" >< BR >< BR >
  
  < input type="hidden" name="LeaveMeAlone" value="x" >
  
  < input type="submit" value="Submit" >
  
  < /FORM >
  
  < /DIV >
  
  < /BODY >
  
  < %
  
  End if
  
  If VisitorName < > "" then
  
  Response.write "Hi, " & VisitorName & "! I hope you are having a great day!"
  
  End if
  
  'rest of the page
  
  % >
  
  
  　　 好，现在来看看上面的代码实现执行了什么。首先，设置页面。然后，检查表单变量（在同一个页面中）。如果表单变量存在，就创建cookie，并设置到期时间。