Question

我正在尝试获取要写入文本文件的列表，添加到文件中的代码是这样的：

text_file = open("tim's diner menu.txt", "w")
menu = (["all day breakfast large, £5.50", "all day breafast small, £3.50", "hot dog, £3.00", "burger, £4.00", "cheese burger, £4.25", "chicken goujons, £3.50", "fries, £1.75", "salad, £2.20", "milkshake, £2.20", "soft drinks, £1.30", "still water, £0.90", "sparkling water, £0.90"])
def menu_rewrite():
    for i in menu:
        text_file.write (menu[i])

运行此函数时，出现错误：

TypeError: list indices must be integers or slices, not str

我想不出什么坏了，已经尝试了我能想到的一切来使它起作用，但是它没有起作用，你们能帮我吗？

Answer 1

检查语法参考。 for在这里不使用索引，括号()用于元组...

menu = ["all day breakfast large, £5.50", "all day breafast small, £3.50", "hot dog, £3.00", "burger, £4.00", "cheese burger, £4.25", "chicken goujons, £3.50", "fries, £1.75", "salad, £2.20", "milkshake, £2.20", "soft drinks, £1.30", "still water, £0.90", "sparkling water, £0.90"]


def menu_rewrite():
    for item in menu:
        text_file.write(item)

Answer 2

如果您写for i in menu，则i将menu的所有值一个接一个，而不是它们的索引，因此您需要写text_file.write(i)而不是{ {1}}。

Answer 3

在您的代码中i是str

更改为：

def menu_rewrite():
    for i in menu:
        text_file.write(i)

或

def menu_rewrite():
    for i in range(len(menu)):
        text_file.write(menu[i])

Answer 4

我尝试了其中一些建议，但我认为它们做了一些事情，但现在又出现了另一个错误。感谢您对发布解决方案的所有人的帮助

尝试将列表添加到文本文件时出现错误

4 个答案: