避免 Internet Explorer 中的快取
Response.Buffer=true
Response.CacheControl = "no-cache"
Response.AddHeader "Pragma", "no-cache"
Response.Expires = -1
Response.CacheControl = "no-cache"
Response.AddHeader "Pragma", "no-cache"
Response.Expires = -1
參考網址 http://support.microsoft.com/kb/234067/zh-tw