当前位置：首页 > article >正文

day15-面向对象作业2

article 2025/1/16 21:39:48

定义一个矩形类，拥有属性：长、宽拥有方法：求周长、求面积

class Rectangle:
    def __init__(self, length, width):
        self.length = length
        self.width = width

    def girth(self):
        return (self.length + self.width) * 2

    def area(self):
        return self.width * self.length


rectangle = Rectangle(20, 10)
print(rectangle.girth())
print(rectangle.area())

定义一个二维点类，拥有属性：x坐标、y坐标拥有方法：求当前点到另外一个点的距离

class Point:
    def __init__(self, point_x, point_y):
        self.point_x = point_x
        self.point_y = point_y

    def distance(self, point):
        return ((self.point_x - point.point_x) ** 2 + (self.point_y - point.point_y) ** 2) ** 0.5


point1 = Point(0, 0)
point2 = Point(3, 4)
result = point1.distance(point2)
print(result)

定义一个圆类，拥有属性：半径、圆心拥有方法：求圆的周长和面积、判断当前圆和另一个圆是否外切

class Point:
    def __init__(self, point_x, point_y):
        self.point_x = point_x
        self.point_y = point_y

    def distance(self, point):
        return ((self.point_x - point.point_x) ** 2 + (self.point_y - point.point_y) ** 2) ** 0.5
      
      
class Circle(Point):
    pai = 3.14159

    def __init__(self, point_x, point_y, r):
        super().__init__(point_x, point_y)
        self.r = r

    def girth(self):
        return self.r * self.pai * 2

    def area(self):
        return self.pai * self.r ** 2

    def circumscribed(self, circle):
        if self.distance(circle) == self.r + circle.r:
            return '外切'
        else:
            return '不外切'



circle1 = Circle(0, 0, 3)
circle2 = Circle(3, 4, 2)
print(circle1.girth)
 print(circle2.area)
print(circle1.circumscribed(circle2))

定义一个线段类，拥有属性：起点和终点，拥有方法：获取线段的长度

class Line():
    def __init__(self, start: tuple, end: tuple):
        self.start = start
        self.end = end

    def length(self):
        return ((self.start[0] - self.end[0]) ** 2 + (self.start[1] - self.end[1]) ** 2) ** 0.5


line = Line((0, 0), (3, 4))
print(line.length())