title: Post byte array in parameter
body: <p>I am writing my http post header.</p>
  
  <pre><code>POST /\r\n
  Content-Length=...\r\n
  \r\n\r\n
  file1=(bytearray data)&amp;file2=(bytearray data)
  </code></pre>
  
  <p>I am not sure how I can put the <code>bytearray</code> data there</p>