易语言如何定义

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public static int CompareFace(string cardImgPath, Bitmap imgCamTmp)
        {
            byte[] faceCard_bytes = new byte[720 * 576 * 3];
            int faceCard_width = 0, faceCard_height = 0;
            byte[] faceCard_feature = new byte[face_feature_size];
            FaceDetectResult faceDetectResult_card = new FaceDetectResult();

            Bitmap imgCam = new Bitmap(imgCamTmp);
            byte[] faceCam_bytes = Util.getDataFromBitmap(imgCam);
            int faceCam_width = imgCam.Width;
            int faceCam_height = imgCam.Height;
            byte[] faceCam_feature = new byte[face_feature_size];
            FaceDetectResult faceDetectResult_Cam = new FaceDetectResult();

            //读取***照片
            int res = res = SynFaceUtil.ReadImageFromFile(cardImgPath, faceCard_bytes, 720 * 576 * 3, ref faceCard_width, ref faceCard_height, 24);
            if (res != 0)
            {
                //***照片解析错误
                return -101;
            }

            //获取***照片特征值
            res = SynFaceUtil.SynFaceFaceFeature(faceCard_bytes, faceCard_width, faceCard_height, 1, ref faceDetectResult_card, faceCard_feature);
            switch (res)