求C#.net或者js 制作图片顺时针(or逆时针)旋转90度,180度的代码

Question

如题,谢谢各位!!!!

Answer 1

http://www.52hai.com/2005/article.asp?id=1073
只在ie里可用

Answer 2

图片旋转90度:(转)Graphics.TranslateTransform 
string filePath =@"C:\a.jpg"; 
            using (Bitmap bm = new Bitmap(500,500)) 
            { 
                using (Graphics g = Graphics.FromImage(bm)) 
                { 
                    g.Clear(Color.Wheat); 
                    g.TranslateTransform(0, 0, MatrixOrder.Prepend); 
                    g.RotateTransform(45); 
                    FontFamily ff = new FontFamily("宋体"); 
                    Font f =new Font(ff,10); 
                    Brush b = new SolidBrush(Color.Black); 
                    StringFormat sf = new StringFormat(); 
                    g.DrawString("", f, b, new PointF(10, 10), sf); 
                    g.DrawString("", f, b, new PointF(10, 10 + 30 + 10), sf); 
                } 
                bm.Save(filePath, ImageFormat.Jpeg); 
            }