WinformC#编写的多边形制作Winform程序，绘画多边形的C#窗体WinForm程序，就像是Windows的画图程序，可画线，可画一些多边形，根据两点一线直接画图。我觉得不错。-Polygons produced Winform WinformC# write program, drawing polygon C# form WinForm program, like the Windows Paint program, you can draw lines, you can draw