�初步"><a class="header" href="#dyn动静态多态初步">dyn:动/静态多态初步</a></h1>
<blockquote>
<p>学伴ChatGPT, chatting for debugging ...</p>
</blockquote>
<h2 id="background"><a class="header" href="#background">background</a></h2>
<blockquote>
<p>Rust 中文社区中的讨论...</p>
</blockquote>
<p><img src="https://ipic.zoomquiet.top/2023-02-28-%E9%A3%9E%E4%B9%A620230228-150444.jpg" alt="这种用if let就会报错，必须分开写吗" /></p>
<h2 id="goal"><a class="header" href="#goal"