添加span标签以链接ruby？

Question

如何将span标记添加到以下链接？

<%= link_to 'demo', :action => 'test', :path => '' %>

应该显示如下:

<a href="/test"><span>demo</span></a>

Answer 1

<% link_to :action => 'test', :path => '' do %>
  <span>demo</span>
<% end %>