<h1 id="programming">Programming<a aria-hidden="true" class="anchor-heading icon-link" href="#programming"></a></h1>
<h1 id="basic">basic<a aria-hidden="true" class="anchor-heading icon-link" href="#basic"></a></h1>
<ul>
<li>socket: <code>ip:port</code>
<ul>
<li>客户端： port是由内核自动分配的</li>
<li>server端：port是和服务对应的</li>
</ul>
</li>
<li>一个连接是一个socket pair</li>
</ul>
<p><img src="/assets/images/2021-05-03-20-17-16.png"></p>