WPF C# Canvas上绘制文字

 private void drawText(double x, double y, string text, Color color,Canvas canvasObj)
        { 
            TextBlock textBlock = new TextBlock(); 
            textBlock.Text = text; 
            textBlock.Foreground = new SolidColorBrush(color); 
            Canvas.SetLeft(textBlock, x); 
            Canvas.SetTop(textBlock, y); 
            canvasObj.Children.Add(textBlock); 
        }

 drawText(l.X1, l.Y1,"Text", Color.FromRgb(200, 0, 0), myCanvas);