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>
    <alllinks galcontinue="張大千|24" />
  </query-continue>
  <query>
    <pages>
      <page pageid="2" ns="0" title="首頁" />
      <page pageid="12" ns="0" title="鄭鴻文 詩文" />
      <page pageid="22" ns="0" title="鄭鴻文 生活網誌" />
      <page pageid="23" ns="0" title="鄭鴻文 視訊" />
      <page pageid="25" ns="0" title="鄭鴻文 年表" />
      <page pageid="197" ns="0" title="鄭鴻文 大事件" />
      <page pageid="742" ns="0" title="2" />
      <page pageid="780" ns="0" title="奧義 Esotericism 奥義 - 鄭鴻文 藝術作品" />
    </pages>
  </query>
</api>