     <span class="hljs-comment">// routing key</span>
  <span class="hljs-literal">false</span>,  <span class="hljs-comment">// mandatory</span>
  <span class="hljs-literal">false</span>,  <span class="hljs-comment">// immediate</span>
  amqp.Publishing{
          ContentType: <span class="hljs-string">&quot;text/plain&quot;</span>,
          Body:        []<span class="hljs-keyword">byte</span>(body),
  })
</code></pre>
<h2 id="&#x4E34;&#x65F6;&#x961F;&#x5217;">&#x4E34;&#x65F6;&#x961F;&#x5217;</h2>
<p>&#x4