Question

我需要帮助我创建一个密码程序：

while len(pw) <= 6 and len(pw) >= 12  is True:
    print ('')
else:
     print ('Please Re-Enter your password, as it must be between 6-12 characters long')
     continue

这是我当前的代码，但是continue在循环之外，所以我无法重新启动它。

那我怎么能重启循环呢？谢谢！

Answer 1

试试这个：

pw = ''
while len(pw) < 6 or len(pw) > 12:
    pw = raw_input('Please enter a password between 6-12 characters long: ')

运行如下：

>>> pw = ''
>>> while len(pw) < 6 or len(pw) > 12:
...     pw = raw_input('Please enter a password between 6-12 characters long: ')
... 
Please enter a password between 6-12 characters long: one
Please enter a password between 6-12 characters long: this is a long sentence
Please enter a password between 6-12 characters long: this works
>>>

在上面的代码中，我们将pw设置为长度为0的字符串。然后，在长度符合我们的要求（6-12个字符）之前，我们要求输入。

或者，如果您想使用continue：

>>> while True:
...     pw = raw_input('Please enter a password between 6-12 characters long: ')
...     if len(pw) < 6 or len(pw) > 12:
...             print('Please Re-Enter your password, as it must be between 6-12 characters long')
...             continue
...     break
... 
Please enter a password between 6-12 characters long: one
Please Re-Enter your password, as it must be between 6-12 characters long
Please enter a password between 6-12 characters long: this is a long sentence
Please Re-Enter your password, as it must be between 6-12 characters long
Please enter a password between 6-12 characters long: this works
>>>

你的continue在while循环之外，你不能'重新进入'，可以这么说。

重启一个while循环？

1 个答案: