爲什麼下面的代碼導致錯誤？

Question

它適用於Employee和calculate_wage，但在嘗試創建PartTimeEmployee的實例並調用PartTimeEmployee的父類的calculate_wage方法時返回錯誤。

class Employee(object): 
    """Models real-life employees!""" 
    def __init__(self, employee_name): 
     self.employee_name = employee_name 

    def calculate_wage(self, hours): 
     self.hours = hours 
     return hours * 20.00 

class PartTimeEmployee(Employee): 
    def __init__(self, employee_name): 
     self.employee_name = employee_name 
    def calculate_wage(self, hours): 
     self.hours = hours 
     return hours * 12.00 
    def full_time_wage(self, hours): 
     return super(PartTimeEmployee, self).calculate_wage(self, hours) 

milton = PartTimeEmployee("Milton") 
print (milton.full_time_wage(10)) 

Answer 1

return super(PartTimeEmployee, self).calculate_wage(self, hours) 

是不正確，應該是

return super(PartTimeEmployee, self).calculate_wage(hours) 

而且下一次：還張貼您看到的錯誤消息。