You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
<api>
  <query-continue>
    <allcategories accontinue="學術單位" />
  </query-continue>
  <query>
    <allcategories>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">Entrepreneur in bangladesh</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">Personal bio</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">SEO Consultant</c>
      <c size="7" pages="0" files="0" subcats="7" xml:space="preserve">典範人物</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">出版刊物</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">含有損壞檔案連結的頁面</c>
      <c size="10" pages="10" files="0" subcats="0" xml:space="preserve">國立臺灣師範大學</c>
      <c size="4" pages="4" files="0" subcats="0" xml:space="preserve">國際交流</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">學校主體性</c>
      <c size="0" pages="0" files="0" subcats="0" xml:space="preserve">學校單位</c>
    </allcategories>
  </query>
</api>