擅长:python、mysql、java
<p>如果你关心性能,并且你的投入很大,那么在回答<code>solid.py</code>给出的问题的基础上做几件事</p>
<ol>
<li>将当前用户转换为集合</li>
<li>使用循环中的设置</li>
</ol>
<pre><code>current_users = ["amit", "ajit", "nishant", "mohit", "Maurya"]
current_user_set = {user.lower() for user in current_users}
new_users = ["deepak", "manish", "maurya", "akhil", "ajit"]
for new_user in [user.lower() for user in new_users]:
if new_user in current_user_set:
print(f"{new_user}, you need to enter new username!")
else:
print(f"{new_user}, This username is available.")
</code></pre>