这不是一项小任务-要做到很好，您应该研究System.Drawing，特别是使用Points，Sizes，与诸如PictureBox之类的窗体控件相关的矩形和System.Drawing.Graphics对象.

Not a small task - to do it really well, you should study up on System.Drawing, specifically using Points, Sizes, Rectangles, and System.Drawing.Graphics objects related to Forms Controls like the PictureBox.