擅长:python、mysql、java
<p>好吧,回答你的更新:</p>
<pre><code>import os
fn = 'somefile.txt'
thefile = open(fn, 'r')
# The next line check the size of the file. Replace "stat(fn).st_size" with your own code if you want.
if stat(fn).st_size > 500:
thefile.seek(0, os.SEEK_END)
# you are now at the end of the file if the size is > 500
</code></pre>