c#中显示打开页面前显示小圆圈旋转效果怎么做

c#中显示打开页面前显示小圆圈旋转效果怎么做

Bitmapbmp;//源图Bitmapbackground;//背景位图Timertimer1;//定时旋转和移动Graphicsg;//背景图的画图对象floatx=0;//水平移动的初始位置privatevoidpictureBox1_Click(objectsender,EventArgse){bmp=newBitmap(@"..\..\1.bmp");background=newBitmap(pictureBox1.Width,pictureBox1.Height,System.Drawing.Imaging.PixelFormat.Format24bppRgb);//画在PictureBox上g=Graphics.FromImage(background);g.TranslateTransform(background.Width/2,background.Height/2);//移动一下中心点，画在背景的中央，好看些timer1=newTimer();timer1.Interval=100;timer1.Tick+=newEventHandler(timer1_Tick);timer1.Enabled=true;}voidtimer1_Tick(objectsender,EventArgse){g.Clear(Color.Black);g.RotateTransform(10.0F);//每次旋转10度，实际上是画图坐标旋转g.DrawImage(bmp,-bmp.Width/2,-bmp.Height/2);//源图中心点和画图对象中心重合，自旋转效果，否则会以左上角为中心旋转Graphicsgb=pictureBox1.CreateGraphics();x+=3.0f;//水平移动效果，步长3像素gb.DrawImage(background,x,0.0f);}

类似这种吗？用layer