Question

def print_menu():
    print('1. Print phone numbers')
    print('2. Add a phone number')
    print('3. Remove a phone number')
    print('4. Lookup a phone number')
    print('5. Quit')
    print()

我键入此代码，没有任何反应，它只显示任何内容。我真的不知道代码有什么问题，请有人帮忙!!!

Answer 1

>>> def print_menu():
...     print('1. Print phone numbers')
...     print('2. Add a phone number')
...     print('3. Remove a phone number')
...     print('4. Lookup a phone number')
...     print('5. Quit')
...     print()
... 
>>> print_menu()
1. Print phone numbers
2. Add a phone number
3. Remove a phone number
4. Lookup a phone number
5. Quit
()

当我输入此代码时没有任何反应？

1 个答案: