擅长:python、mysql、java
<p>此代码只是试图在中的其他代码中查找SessionRecord自我会话(它是键值映射)by key,其中key是recipientId和deviceId的一对。你知道吗</p>
<>在C++、爪哇、C等中,人们宁愿写一些类似的东西:</p>
<pre><code>class Key {
//constructor
Id recipientId;
Id deviceId;
//getters|setters and stuff
}
Map<Key, SessionRecord> sessions = Store.getSessions();
SessionRecord session = sessions.get(new Key(recipientId, deviceId));
</code></pre>