Question

我正在构建一个程序，该程序将检查用户的密码是小于 6 个字符还是大于 10 个字符，并继续检查它是否强。如果不超过 6 个字符或少于字符，它将继续要求用户输入一个少于 10 个字符和超过 6 个字符的密码。尝试使用 while 循环但没有奏效。提前致谢。

if password.isalpha():  # If python detects the input is all letters, it will-
    message = "password weak – contains only letters"  # Choose this message and present it on prompt from line 35
elif password.isnumeric():  # If python detects the input is not all alphabetical letters, it proceeds to this method-
    message = "password weak – contains only numbers"  # and chooses this message and presents it on prompt from line 35
else:
    message = "password strong"  # If the password input is a mixture of letters & numbers, it will print this message-

print(message) # and will be prompted to show for this line of code.

Answer 1

试试这个逻辑。 Flag = 1 表示密码强。

MIN_PASSWORD_LENGTH = 6
MAX_PASSWORD_LENGTH = 10
password = input("Please enter your password: ")  # User will input their password here, proceeding to the if structure
flag=0
while flag==0:
  if len(password) < MIN_PASSWORD_LENGTH:
    password = input("Please enter your password again:(Min Length=6) ")
    continue
  if len(password) > MAX_PASSWORD_LENGTH:
    password = input("Please enter your password again:(Max Length=10) ")
    continue
  else:
    flag=1

Answer 2

试试这个：

while len(str(password)) < MIN_PASSWORD_LENGTH and len(str(password)) > MAX_PASSWORD_LENGTH:
   if password.isalpha():  
      message = "password weak – contains only letters"  
   elif password.isnumeric(): 
      message = "password weak – contains only numbers"  
   else:
      message = "password strong" 
      break
   print(message)

Answer 3

MIN_PASSWORD_LENGTH = 6
MAX_PASSWORD_LENGTH = 10

while True:
  password = input("Please enter your password: ")
  if len(password) < MIN_PASSWORD_LENGTH or len(password) > MAX_PASSWORD_LENGTH:
    print("Password should have more than 6 but less 10 characters")
    continue
  elif password.isalpha():  
     print ("password weak – contains only letters")
     continue
   elif password.isnumeric(): 
     print ("password weak – contains only numbers")
     continue
   else:
      print("password strong")
      break

Answer 4

MIN_PASSWORD_LENGTH = 6
MAX_PASSWORD_LENGTH = 10

def password_func():
    password = input("Please enter your password: ")
    if len(password) < MIN_PASSWORD_LENGTH or len(password) > MAX_PASSWORD_LENGTH:
        print("Password should have more than 6 but less 10 characters")
        return password_func()
    elif password.isalpha():  
        print ("password weak – contains only letters")
        return password_func()
    elif password.isnumeric(): 
        print ("password weak – contains only numbers")
        return password_func()
    else:
        print("password strong")
        return "string"
password_func()

或者简单地while循环

MIN_PASSWORD_LENGTH = 6
MAX_PASSWORD_LENGTH = 10

while True:
    password = input("Please enter your password: ")
    if len(password) < MIN_PASSWORD_LENGTH or len(password) > MAX_PASSWORD_LENGTH:
        print("Password should have more than 6 but less 10 characters")
    elif password.isalpha():  
        print ("password weak – contains only letters")
    elif password.isnumeric(): 
        print ("password weak – contains only numbers")
    else:
        print("password strong")
        break

两者都给我输出如下

Please enter your password: tester
password weak – contains only letters
Please enter your password: test
Password should have more than 6 but less 10 characters
Please enter your password: tester1
password strong

密码检查器的while循环中的if语句

4 个答案: