“Programa de cajero con clase Python” Código de respuesta

Programa de cajero con clase Python

1## 
 2#  This module defines the CashRegister class.
 3#
 4
 5## A simulated cash register that tracks the item count and the total amount due.
 6#
 7class CashRegister :
 8   ## Constructs a cash register with cleared item count and total.
 9   #
10   def __init__(self) :
11      self._itemCount = 0
12      self._totalPrice = 0.0
13      
14   ## Adds an item to this cash register.
15   #  @param price the price of this item
16   #
17   def addItem(self, price) :
18      self._itemCount = self._itemCount + 1
19      self._totalPrice = self._totalPrice + price 
20      
21   ## Gets the price of all items in the current sale.
22   #  @return the total price
23   #
24   def getTotal(self) :
25      return self._totalPrice
26      
27   ## Gets the number of items in the current sale.
28   #  @return the item count
29   #
30   def getCount(self) :
31      return self._itemCount
32
33   ## Clears the item count and the total.
34   #  
35   def clear(self) :
36      self._itemCount = 0
37      self._totalPrice = 0.0