现象:各种图的速度绘制的差异。
1:绘制内存位图,例如
Bitmap _SourceBitmap=new Bitmap(800,480);
Bitmap _DesBitmap=new Bitmap(800,480);
Rectangle ScreenRect = new Rectangle(0, 0, 800, 480);
Rectangle rect_1 = new Rectangle(0, 0, 800, 480);
Graphics gScreen = this.CreateGraphics();
Bitmap _membitmap = new Bitmap(800, 480);
Graphics g_membitmap = Graphics.FromImage(_membitmap);
uint time1 = GetTickCount();
......
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