c#文件裁剪
Bitmap newbm = new Bitmap(nowWidth, nowHeight); Graphics g = Graphics.FromImage(newbm); g.InterpolationMode = InterpolationMode.HighQualityBicubic; g.SmoothingMode = SmoothingMode.HighQuality; g.CompositingQuality = CompositingQuality.HighQuality; g.DrawImage(bmp, new Rectangle(0, 0, nowWidth, nowHeight), new Rectangle(bmp.Width / 2, 0, bmp.Width / 2, bmp.Height), GraphicsUnit.Pixel); g.Dispose();