layout/_partial/head.ejs

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <!--css-->
    <link href="https://cdn.bootcss.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
    <%- css('css/common') %>

    <!--js-->
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.slim.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/4.0.0/js/bootstrap.bundle.min.js"></script>
    <%- partial('_plugin/baidu_tongji') %>

  <%
  var title = "";
  if (is_archive()){
    title = '归档';
    if (is_month()){
      title += ': ' + page.year + '/' + page.month;
    } else if (is_year()){
      title += ': ' + page.year;
    }
  } else if (is_category()){
    title = 'Category: ' + page.category;
  } else if (is_tag()){
    title = 'Tag: ' + page.tag;
  }else{
    title= page.title;
  }
  title = title || config.title || "niuhp's blog";
  %>
  <title>
      <%= title %>
  </title>

  <% if (theme.favicon){ %>
    <link rel="icon" href="<%- url_for(theme.favicon) %>">
  <% } %>

</head>