擅长:python、mysql、java
<p>像这样的:</p>
<pre><code>with open('in.txt','r') as f:
file = f.readlines()
for i in range(1,8,2):
print file[i]
</code></pre>
<p>它将打印:</p>
<pre><code>Yes, brave Sir Robin turned about
And gallantly he chickened out
Bravely talking to his feet
He beat a very brave retreat
</code></pre>