HI gunter
我想，使用网格曲面可能是最快的方法（GIF是完整过程的演示，如果我对命令的位置更熟悉，可以更快），当然这需要对网格的曲线的选择有一定的理解，将对象拆分成一个个封闭的平面，使用平面命令是最好理解方式。
I think using mesh surfaces （network）may be the fastest method (GIF is a complete demonstration of the process, and if I am more familiar with the position of commands, it can be faster), but of course, this requires a certain understanding of the selection of mesh curves. Splitting objects into closed planes, using the plane command is the best way to understand.