擅长:python、mysql、java
<p>试试这个:</p>
<pre><code>text = 'The puppy is cute. Summer is great. Happy friday. sentence4. sentence5. sentence6. sentence7.'
splittext = text.split(".")
for x in range(5, len(splittext), 5):
splittext[x] = "\n"+splittext[x].lstrip()
text = ".".join(splittext)
print(text)
</code></pre>