擅长:python、mysql、java
<pre><code>from itertools import zip_longest
with open('file1.txt') as f1, open('file2.txt') as f2, open('out.txt', 'w') as f:
for left, right in zip_longest(f1, f2, fillvalue='\n'):
f.write(left.rstrip('\n') + right)
</code></pre>