如何使用对象名列表实例化对象

Question

我试图找出如何从一个名称属性字符串中初始化一些对象。每个对象都将映射到一个字典键。基本思路如下：

class Triangle(Shape):
    def __init__():
        Shape.__init__()
    name = "Triangle"

class Square(Shape):
    def __init__():
        Shape.__init__()
    name = "Square"

classTuple = (Triangle, Square)
classList = ["Triangle", "Square"]
classDict = {}

def initObjects():
    for shape in classList:
        for obj in classTuple:
            if obj.name == shape:
                classDict[shape] = obj(obj.sides, obj.corners #etc)

initObjects():

然而，唯一的问题是classTuple中的变量没有定义，需要设置为类对象。你要怎么做呢

Answer 1

您的__init__()方法缺少self参数。我还建议使用super()方法

class Triangle(Shape):
    def __init__(self):
        super().__init__()
    name = "Triangle"

class Square(Shape):
    def __init__(self):
        super().__init__()
    name = "Square"

classTuple = (Triangle, Square)
classList = ["Triangle", "Square"]
classDict = {}

def initObjects():
    for shape in classList:
        for obj in classTuple:
            if obj.name == shape:
                classDict[shape] = obj(obj.sides, obj.corners #etc)

initObjects()