void CheckEmail() { string email = We7Helper.FilterHtmlChars(HttpContext.Current.Request["email"]); HttpContext.Current.Response.Clear(); if (email == "") { HttpContext.Current.Response.Write("false|Email不能为空"); } else if (!Regex.IsMatch(email, @"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*")) { HttpContext.Current.Response.Write("false|Email格式不正确"); } else if (AccountHelper.ExistEmail(email)) { HttpContext.Current.Response.Write("false|该电子邮箱名已被使用"); } else { HttpContext.Current.Response.Write("true|"); } HttpContext.Current.Response.End(); }