擅长:python、mysql、java
<p>这是因为在return语句中使用了逗号,Python将其解释为元组。请改为使用<code>format()</code>:</p>
<pre><code>def wordCount(paragraph):
splited = paragraph.split()
wordnum = len(splited)
eWord = []
for aWord in splited:
if "e" in aWord:
eWord.append(aWord)
eWordnum = len(eWord)
percent = round(eWordnum / wordnum * 100,2)
return "Your text contains {0} words, of which {1} ({2}%) contains an 'e'".format(wordnum, eWordnum, percent)
</code></pre>
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^{pr2}$