python - 我将如何禁止数字作为输入？

Question

好的，所以我定义了一个函数，用户可以在其中输入他/她的名字。我想让它不允许用户为他/她的名字输入像“69”这样的数字。我该怎么做呢？这是我使用的代码:

def name():
    while True:
        name = input("What is your name? "))
        try:
            return str(name)
            break
        except TypeError:
            print("Make sure to enter your actual name.")

Answer 1

您可以使用 isalpha()检查名称:

Return true if all characters in the string are alphabetic and there is at least one character, false otherwise.

>>> "69".isalpha()
False
>>> "test".isalpha()
True

这是您修改后的代码:

while True:
    name = input("What is your name? ")
    if name.isalpha():
        break
    else:
        print("Make sure to enter your actual name.")
        continue

或者:

name = input("What is your name? ")

while not name.isalpha():
    print("Make sure to enter your actual name.")
    name = input("What is your name? ")