我想制作一个密码检查器,但是我该如何制作呢?如果有除数字,大写/小写和(,),$,%,_ /之外的字符,我可以写错误。
到目前为止我所拥有的:
import sys
import re
import string
import random
password = input("Enter Password: ")
length = len(password)
if length < 8:
print("\nPasswords must be between 8-24 characters\n\n")
elif length > 24:
print ("\nPasswords must be between 8-24 characters\n\n")
elif not re.match('[a-z]',password):
print ('error')
答案 0 :(得分:1)
您需要有一个正则表达式,您将对其进行验证:
m = re.compile(r'[a-zA-Z0-9()$%_/.]*$')
if(m.match(input_string)):
Do something..
else
Reject with your logic ...
答案 1 :(得分:0)
尝试
elif not re.match('^[a-zA-Z0-9()$%_/.]*$',password):
我不知道你是否想要逗号。如果是,请使用^[a-zA-Z0-9()$%_/.,]*$
答案 2 :(得分:0)
使用Python,你应该在出现问题时提出异常:
if re.search(r'[^a-zA-Z0-9()$%_]', password):
raise Exception('Valid passwords include ...(whatever)')
这将在方括号之间定义的字符集中搜索密码中不是(^)的任何字符。
答案 3 :(得分:0)
另一种解决方案是:
allowed_characters=['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','1','2','3','4','5','6','7','8','9','0','(',')','$','%','_','/']
password=input("enter password: ")
if any(x not in allowed_characters for x in password):
print("error: invalid character")
else:
print("no error")