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这是我application.html.erb文件app/views/layouts夹中的文件：

<!DOCTYPE html>
<html>
  <head>
    <title><%= full_title(yield(:title)) %></title>
    <%= stylesheet_link_tag "application", media: "all",
                                       "data-turbolinks-track" => true %>
    <%= javascript_include_tag "application", "data-turbolinks-track" => true %>
    <%= csrf_meta_tags %>
    <!--[if lt IE 9]>
    <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
    <![endif]-->
  </head>
  <body>
    <header class="navbar navbar-fixed-top navbar-inverse">
      <div class="navbar-inner">
        <div class="container">
          <%= link_to "sample app", '#', id: "logo" %>
          <nav>
            <ul class="nav pull-right">
              <li><%= link_to "Home",    '#' %></li>
              <li><%= link_to "Help",    '#' %></li>
              <li><%= link_to "Sign in", '#' %></li>
            </ul>
          </nav>
        </div>
      </div>
    </header>
    <div class="container">
      <%= yield %>
    </div>
  </body>
</html>

这是我home.html.erb在单独app/views/static_pages文件夹中的文件：

<div class="center hero-unit">
  <h1>Welcome to the Sample App</h1>

  <h2>
    This is the home page for the
    <a href="http://railstutorial.org/">Ruby on Rails Tutorial</a>
    sample application.
  </h2>

  <%= link_to "Sign up now!", '#', class: "btn btn-large btn-primary" %>
</div>

 <%= link_to image_tag("rails.png", alt: "Rails"), 'http://rubyonrails.org/' %>

出于某种原因，在运行服务器时，唯一显示的代码来自 home.html.erb 文件。为什么不application.html.erb显示文件代码？这是我的config/routes.rb文件，如果有帮助的话：

SampleApp::Application.routes.draw do
   get "static_pages/home"
   get "static_pages/help"
   get "static_pages/about"
end

我知道 StackOverflow 上有类似的查询，但没有一个可以回答我的问题。我将不胜感激任何帮助。

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