20260718 创立[br][br]n=滑动条(0,25,1)[br]赋值(n,1)[br][br]m=滑动条(3,10,1)[br]赋值(m,4)[br][br]a=滑动条(-1,1,0.01)[br]赋值(a,0.17)[br][br][br]l1=最前元素({A, B, C, D,E,F,G,H},m)[br][br]#改进:可取利用定比分点，完美。✓[br]l2=迭代列表(映射((1-a)p+aq, p, lst, q, 合并({提取(lst, 2), 最前元素(lst)})), lst, {l1}, n)[br]l3=映射(多边形(p), p, l2)