Question

这是一个程序，应该询问一系列问题，保存信息，然后将信息显示给您。每当我运行程序时，它都会成功询问所有信息，但在尝试显示某个部分时会出错。

错误是：

Traceback (most recent call last):
 , line 27, in <module>
    main()
 , line 24, in main
    print ("Shift: ", worker.get_shift_number())
AttributeError: 'Worker' object has no attribute 'get_shift_number'

代码是：

# employee.py
class Employee(object):
    def __init__(self, name, id_number):
        self.__id_number = id_number
        self.__name = name
    def set_name(self, name):
        self.__name = name
    def set_id_number(self, id_number):
        self.__id_number = id_number
    def get_name(self):
        return self.__name
    def get_id_number(self):
        return self.__id_number

class Worker(Employee):
    def __init__(self, name, id_number, shift_number, pay_rate):
        #call superclass __init__ method
        Employee.__init__(self, name, id_number)
        #initialize shift_number and pay_rate attributes
        self.__shift_number = shift_number
        self.__pay_rate = pay_rate
        #mutator functions for shift_number and pay_rate
        def set_shift_number(self, shift_number):
            self.__shift_number = shift_number
        def set_pay_rate(self, pay_rate):
            self.__pay_rate = pay_rate
        #accessor functions for shift_number and pay_rate
        def get_shift_number(self):
            return self.__shift_number
        def get_pay_rate(self):
            return self.__pay_rate

然后我们有了这个。

#workerprogram.py
import employee

def main():
    #variables
    worker_name= " "
    worker_id = " "
    worker_shift = 0
    worker_pay = 0.0

    #get data attributes
    worker_name = input("Enter the worker name: ")
    worker_id = input("Enter the ID number: ")
    worker_shift = float(input("Enter the shift number: "))
    worker_pay = float(input("Enter the hourly pay rate: "))

    #create an instance of Worker
    worker = employee.Worker(worker_name, worker_id, worker_shift, worker_pay)

    #display information
    print ("Production worker information: ")
    print ("Name: ", worker.get_name())
    print ("ID number: ", worker.get_id_number())
    print ("Shift: ", worker.get_shift_number())
    print ("Hourly Pay Rate: $", worker.get_pay_rate())

main()

如上所述，Indention是错误的，我也看到我的shift_number在错误的位置初始化。 ;（

谢谢！

Answer 1

因为Rob删除了他的正确答案：你的问题是你的缩进是错误的。

但是，这不是代码的唯一问题。主要的一点就是它“过于复杂，因为你有一些接入器/变换器，这是不需要的，并且只是为你输入它们和使用它们的计算机浪费时间。

这是您的代码的外观：

# employee.py
class Employee(object):

    def __init__(self, name, id_number):
        self.id_number = id_number
        self.name = name

class Worker(Employee):

    def __init__(self, name, id_number, shift_number, pay_rate):
        #call superclass __init__ method
        Employee.__init__(self, name, id_number)
        #initialize shift_number and pay_rate attributes
        self.shift_number = shift_number
        self.pay_rate = pay_rate

#workerprogram.py
import employee

def main():
    #variables
    worker_name= " "
    worker_id = " "
    worker_shift = 0
    worker_pay = 0.0

    #get data attributes
    worker_name = input("Enter the worker name: ")
    worker_id = input("Enter the ID number: ")
    worker_shift = float(input("Enter the shift number: "))
    worker_pay = float(input("Enter the hourly pay rate: "))

    #create an instance of Worker
    worker = employee.Worker(worker_name, worker_id, worker_shift, worker_pay)

    #display information
    print ("Production worker information: ")
    print ("Name: ", worker.name)
    print ("ID number: ", worker.id_number)
    print ("Shift: ", worker.shift_number)
    print ("Hourly Pay Rate: $", worker.pay_rate)

main()

虽然我承认你并不认为你实际上既不想要轮班号也不想支付费率作为花车，但那可以等到另一个问题。

类继承？蟒蛇？

1 个答案: