为什么 python 忽略我的用户名/密码项目的代码？

Question

username = input("Please enter your username: ")

username0 = username
username1 = username.find(" ")
username2 = username.isdigit
username3 = len(username)

password = input("Please enter your password: ")

password1 = len(password)
password2 = password.find("!, @, #, $, %, ^, &, *, (, ), -, _, +, =, `, ~, {, [, }")
password3 = password.find("], |, :, ;, ', ,, ., ?, /")

if username1 == -1:
  pass
elif username1 >= 0:
  print("Your username can not contain spaces.")

breaker1 = 1

if username2:
  pass
elif not username2:
  print("Your username can not contain numbers.")

breaker2 = 2

if username3 > 12:
  print("Your username can not be more than 12 characters.")
elif username3 <= 12:
  pass

breaker3 = 3

if password1 > 12:
  print("Your password can not be more than 12 characters.")
elif password1 <= 12:
  pass
if password2 == -1:
  pass
elif password2 >= 0:
  print("Your password can not contain symbols.")
elif password3 == -1:
  pass
elif password3 >= 0:
  print("Your password can not contain symbols.")

password4 = password.replace("a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q", "*")
password5 = password.replace("r, s, t, u, v, w, x, y, z","*")



print("Your username is " + username + " and your password is " + password + ".")

print(username2)

我正在尝试制作一个代码，可以获取您的用户名和密码，记住它，然后能够将您锁定或让您进入，无论您是否输入了正确的用户名和密码。

我尝试重写某些区域，我尝试使用我用来编码的网站提供的ai，我尝试分解if语句（这就是“Breaker1 = 1”的意思，我想也许if的字符串语句扰乱了 pass 命令）。请记住，我对编码还比较陌生，大约一周前我才开始学习 python。我希望有人能对此有所了解？谢谢！

Answer 1

这里有一些代码，其中包含一些您可以使用的有用函数。它允许您注册用户名和密码并将其存储在同一目录中的文本文件中。这样它会在代码停止运行后保存。这一点也不安全，但作为一个初学者项目，它是有效的。

def StoreUsernamePassword(username,password):

    #make sure there are no spaces 
    username = username.strip() 

    #make sure there are no numbers in the username 
    if any(char.isdigit() for char in username):
        print("Username cannot contain numbers")
        return
    
    #make sure username is less than 12 characters 
    if len(username) > 12:
        print("Username cannot be more than 12 characters")
        return
    
    #make sure password doesn't have symbols 
    if any(not char.isalnum() for char in password):
        print("Password cannot contain symbols")
        return
    
    #make sure password is at most 12 characters 
    if len(password) > 12:
        print("Password cannot be more than 12 characters")
        return
    
    
    with open("credentials.txt", "w") as f:
        f.write(f"{username}\n{password}")

def ReadUsernamePassword():
    with open("credentials.txt", "r") as f:
        username = f.readline().strip()
        password = f.readline().strip()
    return username, password

def login():
    username, password = ReadUsernamePassword()
    input_username = input("Enter username: ")
    input_password = input("Enter password: ")
    if input_username == username and input_password == password:
        print("Login successful")
    else:
        print("Login failed")

def register():
    username = input("Enter username: ")
    password = input("Enter password: ")
    StoreUsernamePassword(username, password)
    print("Registration successful")