在 Python 中的另一个 class 中直接使用或访问 class 个实例
Use or access class instances directly in another class in Python
我正在尝试弄清楚如何访问 Python 中另一个 class 中的 class 实例。
在下面的示例中,我创建了两个 classes,house
和 paint
,并且我想使用 house
class 中的维度作为变量paint
class:
class house:
def __init__(self, length, width)
self.length = length
self.width = width
class paint:
def __init__(self, color_paint, price):
self.color_paint = color_paint
self.price = price * (length * width) # <-- length and width from class house
您可以将 House
class 的实例传递给 Paint
class 的初始化程序:
class House:
def __init__(self, length, width):
self.length = length
self.width = width
class Paint:
def __init__(self, color_paint, price, house):
self.house = house
self.color_paint = color_paint
self.price = price * (self.house.length * self.house.width)
house_obj = House(4, 5)
paint_obj = Paint('blue', 1000, house_obj)
print(paint_obj.price)
输出:
20000 # which is 4 * 5 * 1000
我正在尝试弄清楚如何访问 Python 中另一个 class 中的 class 实例。
在下面的示例中,我创建了两个 classes,house
和 paint
,并且我想使用 house
class 中的维度作为变量paint
class:
class house:
def __init__(self, length, width)
self.length = length
self.width = width
class paint:
def __init__(self, color_paint, price):
self.color_paint = color_paint
self.price = price * (length * width) # <-- length and width from class house
您可以将 House
class 的实例传递给 Paint
class 的初始化程序:
class House:
def __init__(self, length, width):
self.length = length
self.width = width
class Paint:
def __init__(self, color_paint, price, house):
self.house = house
self.color_paint = color_paint
self.price = price * (self.house.length * self.house.width)
house_obj = House(4, 5)
paint_obj = Paint('blue', 1000, house_obj)
print(paint_obj.price)
输出:
20000 # which is 4 * 5 * 1000