以下哪些方式能获得Graphics对象obj？ A: Graphics obj = 窗体或控件名.CreateGraphics(); B: private void 窗体或控件名_Paint(object sender, PaintEventArgs e){ Graphics obj = e. Graphics;} C: Bitmap map = new Bitmap(宽,高);Graphics obj = Graphics.FromImage(map);obj.DrawImage(map, x坐标, y坐标); D: Graphics obj = new Graphics(宽,高);

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2022-06-19

以下哪些方式能获得Graphics对象obj？ A: Graphics obj = 窗体或控件名.CreateGraphics(); B: private void 窗体或控件名_Paint(object sender, PaintEventArgs e){ Graphics obj = e. Graphics;} C: Bitmap map = new Bitmap(宽,高);Graphics obj = Graphics.FromImage(map);obj.DrawImage(map, x坐标, y坐标); D: Graphics obj = new Graphics(宽,高);

以下哪些方式能获得Graphics对象obj？
A: Graphics obj = 窗体或控件名.CreateGraphics();
B: private void 窗体或控件名_Paint(object sender, PaintEventArgs e){ Graphics obj = e. Graphics;}
C: Bitmap map = new Bitmap(宽,高);Graphics obj = Graphics.FromImage(map);obj.DrawImage(map, x坐标, y坐标);
D: Graphics obj = new Graphics(宽,高);

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