擅长:python、mysql、java
<p>您可以尝试迭代索引而不是元素:</p>
<pre class="lang-py prettyprint-override"><code>with open('Original_file','r') as f:
lines = f.readlines()
nf = open('New_file', 'w')
i = 0
while i< len(lines):
line = lines[i]
if 'keyword' in line:
i+=3
else:
nf.write(line + "\n")
i+=1
</code></pre>