asp.net 写cookies与删除cookies代码

asp教程写cookie代码

　　'----------------------------------------------------------------
　　' Name:　　WriteCookie(ByVal strCookieName As String, ByVal strKeyName As String, ByVal strKeyValue As String)
　　' Parameters:
　　'　　[ByVal] strCookieName - cookie名字
　　'　　[ByVal] strKeyName - 键名字
　　'　　[ByVal] strKeyValue - 键值。
　　' Return:　　 String
　　'----------------------------------------------------------------
　　Public Function WriteCookie(ByVal strCookieName As String, ByVal strKeyName As String, ByVal strKeyValue As String) As String
　　　　Dim objEnc As System.Text.Encoding = System.Text.Encoding.GetEncoding("GB2312")
　　　　strKeyValue = System.Web.HttpUtility.UrlEncode(strKeyValue, objEnc)
　　　　System.Web.HttpContext.Current.Response.Cookies(strCookieName)(strKeyName) = strKeyValue
　　End Function

清除代码

　　Sub CleanCookies()
　　　　Dim i As Integer
　　　　Dim cookie As System.Web.HttpCookie
　　　　For i = 0 To System.Web.HttpContext.Current.Request.Cookies.Count - 1
　　　　cookie = System.Web.HttpContext.Current.Request.Cookies(i)
　　　　System.Web.HttpContext.Current.Response.Cookies(CStr(cookie.Name)).Value = ""
　　　　System.Web.HttpContext.Current.Response.Cookies(CStr(cookie.Name)).Expires = DateAdd(DateInterval.Day, -1, Now)
　　　　Next
　　End Sub