| [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'G-CZMGTTFLNY');
</script>
</head>
<body dir="ltr">
  <input type="checkbox" class="hidden toggle" id="menu-control" />
  <input type="checkbox" class="hidden toggle" id="toc-control" />
  <main class="container flex">
    <aside class="book-menu">
      <div class="book-menu-content">
        
  <nav>
<h2 class="book-brand">
  <a class="flex align-center" href="/"><span>Go 语言必知必会</span>
  </a>
</h2>
