Question

好的，我现在已完全更改了我的代码，以便客户列表位于另一个列表中。现在我试图通过for循环引用每个客户的各个列表。但是当我尝试访问客户列表中的单个值时，我得到一个TypeError：列表指示必须是整数或切片，而不是列表。这是代码：

customers = [ ]
customers.append(["Bilbo","Baggins","Dodge Dart", "120876","March 20 2017"])
customers.append(["Samwise"," Gamgee","Ford Tarus","190645","January 10 2017"])
customers.append(["Fredegar","Bolger","Nissan Altima", "80076","April 17 2017"])
customers.append(["Grima"," Wormtounge","Pontiac G6", "134657", "November 24 2016"])
customers.append(["Peregrin"," Took","Ford Focus", "143567", "February 7 2017"])
customers.append(["Meriadoc","Brandybuck","Ford Focus", "143567", "February 19 2017"])



print("At Holden's Oil Change we use our custom built Python program to keep \
track of customer records \
and to display our company logo!!")
time.sleep(7)

print("Select and option from the menu!")

QUIT = '4'

COMMANDS = ('1','2','3','4')

MENU = """1   Current Customers
2   New Customers
3   Company Logo
4   Quit"""

def main():
    while True:
        print(MENU)
        command = realCommand()
        commandChoice(command)
        if command == QUIT:
            print("Program Ended")
            break

def realCommand():
    while True:
        command = input("Select an option: ")
        if not command in COMMANDS:
            print("That is not an option!")
        else:
            return command

def commandChoice(command):
    if command == '1':
        oldCust()
    elif command == '2':
        newCust()
    elif command == '3':
        Turt()

def oldCust():
    print("%6s%12s%20s%24s%22s" % ("First Name", "Last Name", "Car Make & Model", "Mileage Last Service", "Date Last Oil Change"))
    for i in customers:
        print("%8s%18s%22s%24s%32s" % (customers[i][0],customers[i][1],customers[i][2],customers[i][3],customers[i][4]))

函数oldCust（）是for循环运行时出现错误的地方，它给出了类型错误。我已经尝试了几种不同的方法，但每种方式都会发回同样的错误。这是返回的整个错误：

Traceback (most recent call last):
  File "C:\Users\hdaug\Documents\Holden's Personal\Spring 2016-2017\CSCI 1121\HoldensOilChange.py", line 264, in <module>
    main()
  File "C:\Users\hdaug\Documents\Holden's Personal\Spring 2016-2017\CSCI 1121\HoldensOilChange.py", line 49, in main
    commandChoice(command)
  File "C:\Users\hdaug\Documents\Holden's Personal\Spring 2016-2017\CSCI 1121\HoldensOilChange.py", line 66, in commandChoice
    oldCust()
  File "C:\Users\hdaug\Documents\Holden's Personal\Spring 2016-2017\CSCI 1121\HoldensOilChange.py", line 79, in oldCust
    print("%8s%18s%22s%24s%32s" % (customers[i][0],customers[i][1],customers[i][2],customers[i][3],customers[i][4]))
TypeError: list indices must be integers or slices, not list

TypeError：列表索引必须是整数或切片，而不是列表

0 个答案: