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PictureBox picture = new PictureBox();
picture.Image = Image.FromFile(@"D:\01.png");
picture.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize;
picture.Location = new Point(30, 10);//加入這一行之後,panel就會出現水平和垂直的Bar
Panel panel = new Panel();
panel.Size = new Size(100, 100);
panel.Location = new Point(20, 20);
panel.AutoScroll = true;
panel.Controls.Add(picture);
this.Controls.Add(panel);
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