擅长:python、mysql、java
<p>如文件所述:</p>
<blockquote>
<p>Help on built-in function readlines:</p>
<p>readlines(hint=-1, /) method of _io.TextIOWrapper instance
Return a list of lines from the stream.</p>
<pre><code>hint can be specified to control the number of lines read: no more
lines will be read if the total size (in bytes/characters) of all
lines so far exceeds hint.
</code></pre>
</blockquote>
<p>用完所有行后,对<code>readlines</code>的下一个调用将为空</p>
<p>更改函数以将结果存储在临时变量中:</p>
<pre><code>with open(os.path.join(root, file)) as fRead:
lines = fRead.readlines()
line_3 = lines[3]
line_4 = lines[4]
print line_3
print line_4
</code></pre>