擅长:python、mysql、java
<p>学习和使用正则表达式。它将帮助您完成所有的文档意义处理。在</p>
<pre><code>import re #regex library
with open('test234.txt') as f: #file stream
lines = f.readlines() #reads all lines
p = re.compile('^#.*') #regex pattern creation
for l in lines:
if p.match(l) == None: #looks for non-matching lines
print(l[:-2])
</code></pre>