擅长:python、mysql、java
<p>下面是提供您所需输出的程序,但请明确说明输出的情况。你知道吗</p>
<pre><code>flag=False
with open ("file.txt", "r") as saveoutput:
for line in saveoutput:
if line.startswith('-'):
flag=False
elif line.startswith('+'):
flag=True
if flag:
print(line,end='')
print(' ')
flag=False
with open ("file.txt", "r") as saveoutput:
for line in saveoutput:
if (line.startswith('+')) or (line.endswith('#\n')):
flag=False
elif line.startswith('-'):
flag=True
if flag:
print(line,end='')
</code></pre>