擅长:python、mysql、java
<pre><code>with open('/tmp/content.txt') as f: # where: '/tmp/content.txt' is the path of file
for i, line in enumerate(f.readlines()):
line = line.strip()
if not (i % 2):
line += ' value = 500'
print line.strip()
# Output:
Indicate somename X1 value = 500
Random qwerty
Indicate somename X2 value = 500
random azerty
Indicate somename X3 value = 500
random qwertz
Indicate somename X4 value = 500
random asdfg
Indicate somename X5 value = 500
</code></pre>