问题描述

所以我必须创建验证密码是否的代码:

So I have to create code that validate whether a password:

• 长度至少为 8 个字符
• 至少包含 1 个数字
• 至少包含 1 个大写字母

代码如下:

def validate():
    while True:
        password = input("Enter a password: ")
        if len(password) < 8:
            print("Make sure your password is at lest 8 letters")
        elif not password.isdigit():
            print("Make sure your password has a number in it")
        elif not password.isupper(): 
            print("Make sure your password has a capital letter in it")
        else:
            print("Your password seems fine")
            break

validate()

我不确定出了什么问题，但是当我输入一个带有数字的密码时 - 它一直告诉我我需要一个带有数字的密码.有什么解决办法吗?

I'm not sure what is wrong, but when I enter a password that has a number - it keeps telling me that I need a password with a number in it. Any solutions?

推荐答案

您可以使用 re 模块进行正则表达式.

You can use re module for regular expressions.

使用它，您的代码将如下所示:

With it your code would look like this:

import re

def validate():
    while True:
        password = raw_input("Enter a password: ")
        if len(password) < 8:
            print("Make sure your password is at lest 8 letters")
        elif re.search('[0-9]',password) is None:
            print("Make sure your password has a number in it")
        elif re.search('[A-Z]',password) is None: 
            print("Make sure your password has a capital letter in it")
        else:
            print("Your password seems fine")
            break

validate()

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