Question

我正在自学Python类和子类。我试图在书中提一个问题，但被卡住了。我正在尝试创建3个三角形和4个正方形，并打印出一个三角形和一个正方形的所有属性，但是我不确定如何。谢谢您的帮助！。这本书给了我这个：

> class Shape(object):
>       def __init__(self, corner=10):
>        self.__corner= corner
>        self.__sides=corner

这是我到目前为止所拥有的：

class Shape(object):
      def __init__(self, corner=10):
       self.__corner= corner
       self.__sides=corner

  def set_corner(self, corner):
    self.__corner= corner
  def set_sides(self, corner):
    self.__sides= corner
  def get_corner(self):
    return self.__corner
  def get_sides(self):
    return self.__sides

class Square(Shape):
  def __init__(self, corner, area):
    Shape.__init__(self, corner=10)
    self.__area=area
  def set_area(self,area):
    self.__area= area
  def get_area(self,area):
    return self.__area

class Triangle(Shape):
  def __init__(self, corner, height):
    Shape.__init__(self, corner=10)
    self.__height=height
  def set_height(self,height):
    self.__height= height
  def get_height(self,height):
    return self.__height

Answer 1

使用您的代码（只需最少的修改），这是一种实现方式：

class Square(Shape):
    def __init__(self, corner, area):
        Shape.__init__(self, corner = 10)
        self.__area = area
    def set_area(self):
        self.__area = area
    def get_area(self):
        return self.__area

class Triangle(Shape):
    def __init__(self, corner, height):
        Shape.__init__(self, corner = 10)
        self.__height = height
    def set_height(self):
        self.__height = height
    def get_height(self):
        return self.__height

# example triangle
t1 = Triangle(3, 50)

# example square
s1 = Square(5, 20)

# print the attributes
print('Triangle 1 height: {height} units.'.format(height=t1.get_height()))
print('Square 1 area: {area} sq. units.'.format(area=s1.get_area()))

打印：

Triangle 1 height: 50 units.
Square 1 area: 20 sq. units.

可能需要调整值以获得合理的结果。

Python 3类和子类：创建三角形和正方形

1 个答案: