C# 剪裁图片

        /// 
/// 剪裁图片/// 
/// 原图片/// 左坐标/// 顶部坐标/// 右坐标/// 底部坐标/// 剪裁后的图片public Image CutImage(Image src, int left, int top, int right, int bottom){Bitmap srcBitmap = new Bitmap(src);int width = right - left;int height = bottom - top;Bitmap destBitmap = new Bitmap(width, height);using (Graphics g = Graphics.FromImage(destBitmap)){g.Clear(Color.Transparent);//设置画布的描绘质量         g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;g.DrawImage(srcBitmap, new Rectangle(0, 0, width, height), left, top, width, height, GraphicsUnit.Pixel);}return destBitmap;}

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