擅长:python、mysql、java
<pre><code># Usage: foo.py ID_FILE DATA_FILE
ids = set()
with open(sys.argv[1]) as id_file:
ids = set(line.strip() for line in id_file)
with open(sys.argv[2]) as data_file:
for line in data_file:
if line.split()[0] in ids:
print line,
</code></pre>