擅长:python、mysql、java
<p>谢谢大家,我找到了一个适合我的问题的解决方案。我在<a href="http://code.activestate.com/recipes/173220/" rel="noreferrer">http://code.activestate.com/recipes/173220/</a>找到了这段代码,为了适应我,我只修改了一小段。</p>
<p>它工作得很好。</p>
<pre><code>from __future__ import division
import string
def istext(filename):
s=open(filename).read(512)
text_characters = "".join(map(chr, range(32, 127)) + list("\n\r\t\b"))
_null_trans = string.maketrans("", "")
if not s:
# Empty files are considered text
return True
if "\0" in s:
# Files with null bytes are likely binary
return False
# Get the non-text characters (maps a character to itself then
# use the 'remove' option to get rid of the text characters.)
t = s.translate(_null_trans, text_characters)
# If more than 30% non-text characters, then
# this is considered a binary file
if float(len(t))/float(len(s)) > 0.30:
return False
return True
</code></pre>