C#中清理緩存代碼

<%
    HttpContext.Current.Response.Buffer = true;
    HttpContext.Current.Response.Expires = 0;
    HttpContext.Current.Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
    HttpContext.Current.Response.AddHeader("pragma", "no-cache");
    HttpContext.Current.Response.AddHeader("cache-control", "private");
    HttpContext.Current.Response.CacheControl = "no-cache";
%>