from sprites import point_is_on_line A = (200,80) B = (-200,0) C = (200,0) D = (0,0) E = (-1000,0) print(point_is_on_line(A,(B,C))) # 判断A点是否在直线BC上 print(point_is_on_line(D,(B,C))) # 判断D点是否在直线BC上 print(point_is_on_line(E,(B,C))) # 判断E点是否在直线BC上