<p>例如,如果输入<code>I love dogs</code>,则需要如下所示:</p>
<pre><code>I l o v e d o g s
</code></pre>
<p>此代码不执行我需要它执行的操作:</p>
<pre><code>def spaceitout(source):
pile = ""
for letter in source:
pile = pile+letter
print pile
print pile
</code></pre>
<pre><code>def evenly_spaced(string_,space_= 1):
import re
return (' '*space_).join([c for c in re.split(r'(\w)',string_) if c.isalpha()])
print(evenly_spaced(" This a long story ",2))
T h i s a l o n g s t o r y
</code></pre>