用canvas画只有一个角是圆角的矩形，能画出来么 您好，您用用这个方法：float[]radii={12f，12f，0f，0f，0f，0f，0f，0f}；path.addRoundRect(new RectF(0，0，50，50)，radii，Path.Direction.CW)；canvas.drawPath(path，paint)；
如何绘制在C#中的圆角矩形 public static GraphicsPath RoundedRect(Rectangle bounds，int radius){int diameter=radius*2；Size size=new Size(diameter，diameter)；Rectangle arc=new Rectangle(bounds.Location，size)；GraphicsPath path=new GraphicsPath()；if(radius=0){path.AddRectangle(bounds)；return path；}top left arcpath.AddArc(arc，180，90)；top right arcarc.X=bounds.Right-diameter；path.AddArc(arc，270，90)；bottom right arcarc.Y=bounds.Bottom-diameter；path.AddArc(arc，0，90)；bottom left arcarc.X=bounds.Left；path.AddArc(arc，90，90)；path.CloseFigure()；return path；}And you can make two extension methods for the Graphics type so youcan use them as the usual Draw.and Fill.shape-drawing methods.public static void DrawRoundedRectangle(this Graphics graphics，Pen pen，Rectangle bounds，int cornerRadius){if(graphics=null)throw new ArgumentNullException(\"graphics\")；if(pen=null)throw new ArgumentNullException(\"pen\")；using(GraphicsPath path=RoundedRect(bounds，cornerRadius)){graphics.DrawPath(pen，path)；}}public static。
怎么用代码写一个圆角矩形？ C#protected void Page_Load(object sender，EventArgs e){Bitmap bm=new Bitmap(800，600)；Graphics g=Graphics.FromImage(bm)；g.FillRectangle(Brushes.White，new Rectangle(0，0，800，600))；FillRoundRectangle(g，Brushes.Plum，new Rectangle(100，100，100，100)，8)；DrawRoundRectangle(g，Pens.Yellow，new Rectangle(100，100，100，100)，8)；bm.Save(Response.OutputStream，ImageFormat.Jpeg)；g.Dispose()；bm.Dispose()；}public static void DrawRoundRectangle(Graphics g，Pen pen，Rectangle rect，int cornerRadius){using(GraphicsPath path=CreateRoundedRectanglePath(rect，cornerRadius)){g.DrawPath(pen，path)；}}public static void FillRoundRectangle(Graphics g，Brush brush，Rectangle rect，int cornerRadius){using(GraphicsPath path=CreateRoundedRectanglePath(rect，cornerRadius)){g.FillPath(brush，path)；}}internal static GraphicsPath CreateRoundedRectanglePath(Rectangle rect，int cornerRadius){GraphicsPath roundedRect=new GraphicsPath()；roundedRect.AddArc(rect.X，rect.Y，cornerRadius*2，cornerRadius*2，180，90)；。
