Exemplos de CaptchaHelper.IdentifyImg em C# (CSharp)

Exemplo n.º 1

        /// <summary>
        /// 生成图形验证码
        /// </summary>
        /// <returns>图形验证码</returns>
        public ActionResult Captcha()
        {
            var code       = CaptchaHelper.GetRandomCode(4);
            var codeStream = CaptchaHelper.IdentifyImg(code, 20, 30);

            Session[CAPTCHA] = code;
            return(File(codeStream.ToArray(), @"image/jpeg"));
        }