這是我制作位圖的 C# 代碼   public void VerificationCode(int captchaWidth = 75, int captchaHeight = 25)    {        var colorList = new List<Color> { Color.Red, Color.Orange, Color.Yellow, Color.Green, Color.Blue, Color.Brown };        Response.ContentType = "image/gif";        Response.Clear();        Response.BufferOutput = true;        var randString = new Random((int)DateTime.Now.Ticks).Next(99999).ToString("00000");             Session["VerificationCode"] = randString;        var bitmap = new Bitmap(captchaWidth, captchaHeight);                    var graph = Graphics.FromImage(bitmap);                    var font = new Font("Arial", 16, FontStyle.Italic);        var fontColor = Color.FromArgb(153, 153, 153);                    graph.Clear(Color.White);                    graph.DrawString(randString, font, new SolidBrush(fontColor), 0, 0);        var random = new Random((int)DateTime.Now.Ticks);        var randomColor = new Random((int)DateTime.Now.Ticks);        for (var i = 0; i < 100; i++)        {            var c = randomColor.Next(0, colorList.Count);            var randPixelX = random.Next(0, captchaWidth);            var randPixelY = random.Next(0, captchaHeight);            bitmap.SetPixel(randPixelX, randPixelY, colorList[c]);        }                    bitmap.Save(Response.OutputStream, ImageFormat.Gif);    } $('#ChangeCaptcha').on('click', function () {        $.ajax({            url: '@Url.Action("VerificationCode", "Base")',            type: 'Get',            async: false,            success: function (data) {                console.log(data);                $('#CaptchaImage').attr('src', "data:image/gif;base64," + data);            }        });    });這是我使用 ajax 獲取位圖以更改 img src 的 Javascript 代碼。但它不起作用。我總是收到錯誤消息。任何人都可以幫助我解決這個問題。我已經(jīng)將 minitype 更改為“data:image/bmp;base64”或“data:image/gif”，然后總是出錯。