You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allpages>
      <p pageid="114" ns="0" title="Bash的输入输出重定向" />
      <p pageid="560" ns="0" title="Btrfs" />
      <p pageid="813" ns="0" title="CMake编译Qt程序" />
      <p pageid="58" ns="0" title="CPU频率调节(SpeedStep, PowerNow)" />
      <p pageid="107" ns="0" title="Convmv" />
      <p pageid="349" ns="0" title="Debian" />
      <p pageid="402" ns="0" title="Debian alternatives system" />
      <p pageid="60" ns="0" title="Debian、Ubuntu安装Java环境" />
      <p pageid="29" ns="0" title="Debian下教育网直通车的使用" />
      <p pageid="235" ns="0" title="Debian中fcitx使用方法" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Debian中编译内核" />
  </query-continue>
</api>