擅长:python、mysql、java
<pre><code>if (any(x.isupper() for x in s) and any(x.islower() for x in s)
and any(x.isdigit() for x in s) and len(s) >= 7):
</code></pre>
<p>另一种方法是将规则表示为(lambda)函数列表</p>
<pre><code>rules = [lambda s: any(x.isupper() for x in s), # must have at least one uppercase
lambda s: any(x.islower() for x in s), # must have at least one lowercase
lambda s: any(x.isdigit() for x in s), # must have at least one digit
lambda s: len(s) >= 7 # must be at least 7 characters
]
if all(rule(s) for rule in rules):
...
</code></pre>
<p>关于你的评论。生成错误消息</p>
<pre><code>errors = []
if not any(x.isupper() for x in password):
errors.append('Your password needs at least 1 capital.')
if not any(x.islower() for x in password):
errors.append(...)
...
if errors:
print " ".join(errors)
</code></pre>