class Car(object): def __init__(self,brand,num): self.brand=brand self.num=num def start(self): pass def stop(self): pass class Taxi(Car): def __init__(self,brand,num,company): super().__init__()

在这个代码中，我们定义了一个Car类和一个Taxi类，其中Taxi类继承了Car类。Car类有一个构造函数__init__，它接受两个参数brand和num，表示汽车的品牌和编号。Taxi类也有一个构造函数__init__，它接受三个参数brand、num和company，表示出租车的品牌、编号和所属公司。

在Taxi类的构造函数中，我们首先调用了父类Car的构造函数，使用super().__init__()来实现。但是，我们没有将brand和num这两个参数传递给父类的构造函数，导致程序出现了错误。

为了解决这个问题，我们需要将brand和num这两个参数传递给父类的构造函数。修改Taxi类的构造函数如下：

class Taxi(Car):
    def __init__(self, brand, num, company):
        super().__init__(brand, num)
        self.company = company

这样，当我们创建一个Taxi对象时，就可以同时传递品牌、编号和所属公司三个参数，例如：

my_taxi = Taxi('Toyota', 1234, 'ABC Taxi Company')

这样，my_taxi对象就可以访问继承自Car类的属性brand和num，以及自己独有的属性company。

相关问题

优化代码class DeliveryRequest: def __init__(self, name, location, time): self.name = name self.location = location self.time = time class DeliveryStation: def __init__(self, location): self.location = location self.requests = [] def add_request(self, request): self.requests.append(request) def match_deliveryman(self, deliverymen): for request in self.requests: for deliveryman in deliverymen: if request.location == deliveryman.location and request.time == deliveryman.available_time: print(f"您有一个快递将送给{request.name}，请您按时送货") print(f"您的快递将由{deliveryman.name}在{request.time}送达，请您按时等候") deliverymen.remove(deliveryman) break class DeliveryMan: def __init__(self, name, location, available_time): self.name = name self.location = location self.available_time = available_time class Dispatcher: def __init__(self, delivery_stations, deliverymen): self.delivery_stations = delivery_stations self.deliverymen = deliverymen def dispatch(self): for station in self.delivery_stations: station.match_deliveryman(self.deliverymen)

可以考虑优化代码的可读性和效率，例如使用列表推导式和更好的命名：

class DeliveryRequest:
    def __init__(self, name, location, time):
        self.name = name
        self.location = location
        self.time = time

class DeliveryStation:
    def __init__(self, location):
        self.location = location
        self.requests = []

    def add_request(self, request):
        self.requests.append(request)

    def match_deliveryman(self, deliverymen):
        for request in self.requests:
            matching_deliverymen = [dm for dm in deliverymen if dm.location == request.location and dm.available_time == request.time]
            for deliveryman in matching_deliverymen:
                print(f"您有一个快递将送给{request.name}，请您按时送货")
                print(f"您的快递将由{deliveryman.name}在{request.time}送达，请您按时等候")
                deliverymen.remove(deliveryman)
                break

class DeliveryMan:
    def __init__(self, name, location, available_time):
        self.name = name
        self.location = location
        self.available_time = available_time

class Dispatcher:
    def __init__(self, delivery_stations, deliverymen):
        self.delivery_stations = delivery_stations
        self.deliverymen = deliverymen

    def dispatch(self):
        for station in self.delivery_stations:
            station.match_deliveryman(self.deliverymen)

这样，我们使用列表推导式来创建了一个匹配的快递员列表，然后使用一个 for 循环来遍历它。我们也使用更好的变量名来提高代码的可读性。

class DSFANet(object): def __init__(self, num=None): self.num = num self.output_num = 6 self.hidden_num = 128 self.layers = 2 self.reg = 1e-4 self.activation = tf.nn.softsign self.init = tf.initializers.he_normal()

这是一个 Python 代码段，用于初始化 DSFANet 类的实例。它定义了一些参数，包括 num、output_num、hidden_num、layers、reg、activation 和 init。这些参数将用于构建 DSFANet 模型。