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Я выполняю задачу IGCSE перед выпуском, но каждый раз, когда я запускаю свой код, я получаю две ошибки, первая из которых заключается в том, что каждый раз, когда я заказываю первую партию продуктов питания, я должен вводить предыдущий код продуктов питания, так как он не будет работать, а вторая ошибка заключается в том, что я постоянно получаю ошибку «IndexError: индекс списка вне диапазона».

Мой код:

 ItemNames = ['French Fries', '1/4 pound burger', '1/4 pound cheeseburger', '1/2 pound burger', '1/2 pound cheeseburger', 'Medium pizza', 'Medium pizza with extra toppings', 'Large pizza', 'Large pizza with extra toppings', 'Garlic Bread'] ItemPrice=[2.00, 5.00, 5.55, 7.00, 7.50, 9.00, 11.00, 12.00, 14.50, 4.50] ItemCode=['001','002','003','004', '005', '006', '007', '008', '009', '010'] CartItems=[] CartQuantity=[] TotalItemPrice=[] CartPrice=[] DailyCost=[] i=0 while i lt; len(ItemNames):  print(ItemNames[i],"|", ItemPrice[i],"$ | Item Code: ", ItemCode[i]," | ")  i = i 1 i = 0 x = 0 z = 0 while i == 0:  x = 0  z = 0  InputName = input("Please enter the item name which you wish to buy: ")  while x lt; len(ItemNames):  if InputName == ItemNames[x]:  x = len(ItemNames)  z = 1  InputNames = x  else:  x=x 1   if z == 0:  print("Item not found")  continue  else:  x = 0  z = 0  while x lt; len(ItemCode):  ItemIndex = ItemNames.index(InputName)  InputCode = input("Please enter the item code for the item which you wish to buy: ")  if InputCode == ItemCode[x]:  x = len(ItemCode)  z = 1  InputNames = x  else:  x=x 1  if z == 0:  print("Item code not found.")  x = 0  z = 0  continue  x = 0  ItemQuantity = int(input("Please enter the number of items you wish do buy: "))  Confirm = input("Please enter y (lower case) to confirm you order, enter any other key to cancel, enter z to finish your order inclusive of this item: ")  if Confirm == "y" or Confirm == "z":  CartItems.append(InputName)  CartQuantity.append(ItemQuantity)  TotalInputPrice = ItemPrice[ItemIndex]*CartQuantity[ItemIndex]  TotalItemPrice.append(TotalInputPrice)  if Confirm == "z":  CartPrice=sum(TotalItemPrice)  while x lt; len(CartItems):  print(CartItems[x],"|", CartQuantity[x], "Items | Item total: ", TotalItemPrice[x])  x=x 1  print("Total: ", CartPrice,"$")  elif Confirm == "y":  continue  else:  break  

и моя первая ошибка выглядит так:

 French Fries | 2.0 $ | Item Code: 001 |  1/4 pound burger | 5.0 $ | Item Code: 002 |  1/4 pound cheeseburger | 5.55 $ | Item Code: 003 |  1/2 pound burger | 7.0 $ | Item Code: 004 |  1/2 pound cheeseburger | 7.5 $ | Item Code: 005 |  Medium pizza | 9.0 $ | Item Code: 006 |  Medium pizza with extra toppings | 11.0 $ | Item Code: 007 |  Large pizza | 12.0 $ | Item Code: 008 |  Large pizza with extra toppings | 14.5 $ | Item Code: 009 |  Garlic Bread | 4.5 $ | Item Code: 010 |  Please enter the item name which you wish to buy: French Fries Please enter the item code for the item which you wish to buy: 001 Please enter the number of items you wish do buy: 2 Please enter y (lower case) to confirm you order, enter any other key to cancel, enter z to finish your order inclusive of this item: y Please enter the item name which you wish to buy: Medium pizza Please enter the item code for the item which you wish to buy: 006 Item code not found. Please enter the item code for the item which you wish to buy: 001  

и моя ошибка:

 French Fries | 2.0 $ | Item Code: 001 |  1/4 pound burger | 5.0 $ | Item Code: 002 |  1/4 pound cheeseburger | 5.55 $ | Item Code: 003 |  1/2 pound burger | 7.0 $ | Item Code: 004 |  1/2 pound cheeseburger | 7.5 $ | Item Code: 005 |  Medium pizza | 9.0 $ | Item Code: 006 |  Medium pizza with extra toppings | 11.0 $ | Item Code: 007 |  Large pizza | 12.0 $ | Item Code: 008 |  Large pizza with extra toppings | 14.5 $ | Item Code: 009 |  Garlic Bread | 4.5 $ | Item Code: 010 |  Please enter the item name which you wish to buy: French Fries Please enter the item code for the item which you wish to buy: 001 Please enter the number of items you wish do buy: 2 Please enter y (lower case) to confirm you order, enter any other key to cancel, enter z to finish your order inclusive of this item: y Please enter the item name which you wish to buy: Medium pizza Please enter the item code for the item which you wish to buy: 006 Item code not found. Please enter the item code for the item which you wish to buy: 001 Please enter the number of items you wish do buy: 2 Please enter y (lower case) to confirm you order, enter any other key to cancel, enter z to finish your order inclusive of this item: z Traceback (most recent call last):  File (private), line 54, in lt;modulegt;  TotalInputPrice = ItemPrice[ItemIndex]*CartQuantity[ItemIndex] IndexError: list index out of range