擅长:python、mysql、java
<p>在Python中,经常需要使用字典:</p>
<pre><code>import string
def do_the_deed(srctxt, upperlower):
chars = string.lowercase if upperlower == 'LOWER' else string.uppercase
translate = dict(zip(chars, range(1,27)))
return sum(translate.get(c, 0) for c in srctxt[5:31])
</code></pre>