lesson 38

指尖、行

home work

import math as m
import random as r

class Point:
    def __init__(self):
        self.x = r.randint(0, 100)
        self.y = r.randint(0, 100)
        print('该点的x坐标为：%d\n该点的y坐标为：%d' % (self.x, self.y))
    def self_x(self):
        return self.x
   
    def self_y(self):
        return self.y

class Line:
    def __init__(self, PointA, PointB):
  #      PointA = Point()
    #    PointB = Point()
        self.line_x = PointA.self_x() - PointB.self_x()
        self.line_y = PointA.self_y() - PointB.self_y()
        self.length = m.sqrt(self.line_x *self.line_x  + self.line_y*self.line_y)

    def length(self):
        return self.length