任務是：編寫代碼，在列表中搜索客戶訂購的加載項名稱。編寫打印加載項名稱和價格或錯誤消息的代碼，然后編寫打印總訂單成本的代碼。使用以下數據執行程序并驗證輸出是否正確：CreamCaramelWhiskeychocolateChocolateCinnamonVanilla我已經執行了分配的主要部分，但不明白如何捕獲先前輸入的值以求和/相加。我的代碼：# Declare variables.NUM_ITEMS = 5 # Named constant# Initialized list of add-insaddIns = ["Cream", "Cinnamon", "Chocolate", "Amaretto", "Whiskey"]# Initialized list of add-in pricesaddInPrices = [.89, .25, .59, 1.50, 1.75] # Flag variableorderTotal = 2.00  # All orders start with a 2.00 charge# Get user input# addIn = ""addIn = input("Enter coffee add-in or XXX to quit: ")# Write the rest of the program here.while addIn != "XXX":    foundIt = False    for i in range(0, len(addInPrices)):        price = addInPrices[i]        product = addIns[i]        if addIn == product:             foundIt = True            break    if foundIt == True:        print("{} Price is ${}".format(product,price))    else:         print("Sorry, we do not carry that.")    addIn = input("Enter coffee add-in or XXX to quit: ")# MY COMMENT --- Want to create new list from input above when foundIT == True and sum total to print out total order cost.    newList=[]  #Create new list to grab values when foundIt == True    while foundIt == True:        addCost=price        newList.extend(addCost)        foundIt == True        break    else:        foundIt == False    print(newList)print("Order Total is ${}".format(orderTotal))我發現我一直在嘗試迭代浮點數（例如addCost，price等）或迭代不允許的“布爾”。我是否應該在代碼前面的列表中捕獲用戶的輸入，以便為練習的最后一步求和？除了創建一個列表來解決練習之外，我還應該考慮其他事情嗎？如果有，請分享。