How to embed a tag using content_tag in RoR?

I have this to generate a hyperlink for me:

<%= link_to "Example", "http://example.com" %>

And I want it display in the td tag, so I want to use this content_tag to help me:

<%= content_tag(:td,"", :class => "example")%>

I want the hyperlink in my td, so I have something like this:

<%= content_tag(:td,<%= link_to "Example", "http://example.com" %>, :class => "example")%>

But I get the Syn开发者_Go百科tax Error, what should I do?

Inline:

<%= content_tag(:td, link_to('Example', 'http://example.com'),
                :class => 'example') %>

Or block form:

<% content_tag(:td, :class => 'example') do %>
  <%= link_to('Example', 'http://example.com') %>
<% end %>