擅长:python、mysql、java
<p><code>update()</code>函数提供要连接的字符串。在</p>
<p><a href="https://docs.python.org/2/library/hashlib.html">https://docs.python.org/2/library/hashlib.html</a></p>
<pre><code>>>> import hashlib
>>> mysha1 = hashlib.sha1()
>>> mysha1.update("my_url")
>>> print mysha1.hexdigest()
ebde90b9f0c047ff9f86bec3b71afe5d00594030
>>> mysha1.update("my_url")
>>> print mysha1.hexdigest()
efa6ba48cedd0da886a553ad0e7c131ec79b452e
>>>
>>>
>>> sha = hashlib.sha1()
>>> sha.update("my_urlmy_url")
>>> print sha.hexdigest()
efa6ba48cedd0da886a553ad0e7c131ec79b452e
</code></pre>