擅长:python、mysql、java
<p>请尝试以下操作:</p>
<pre><code>usernames = []
secure_users = ['jason','test','admin']
with open('config_file.txt', "r") as f:
for line in f:
usernames.append(line.split()[1])
print([user for user in secure_users if user in usernames])
</code></pre>