擅长:python、mysql、java
<p>试试这个:</p>
<pre><code># -*- encoding: utf-8 -*-
import re
My_string = "aaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeffffffffffffffffffff"
split="\n "
a = split.join(re.findall("(?s).{,20}", My_string))[0:-1]
print ''' -
Value of a is
%s -''' % a
</code></pre>
<p>看起来可以满足你的要求</p>