/// <summary> /// 生成验证码 /// </summary> /// <param name="type">1-系统级验证码 2-手机短信验证码 3-邮箱验证码</param> /// <returns></returns> private string GetSystemVerificationCode(string type) { string code = String.Empty; switch (type) { case "1": code = ValidateCodeHelper.GetRandLetterAndNumber(4, true); break; case "2": break; case "3": break; } return(code); }