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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20140221060635" timestamp="2014-02-21T06:06:35Z" ns="0" title="免费午餐概况" />
        <page value="20140221071826" timestamp="2014-02-21T07:18:26Z" ns="0" title="行业概况" />
        <page value="20140302134207" timestamp="2014-03-02T13:42:07Z" ns="0" title="技术总监" />
        <page value="20140302134713" timestamp="2014-03-02T13:47:13Z" ns="0" title="技术支持" />
        <page value="20140306133402" timestamp="2014-03-06T13:34:02Z" ns="0" title="免费午餐大事记" />
        <page value="20140306225418" timestamp="2014-03-06T22:54:18Z" ns="0" title="免费午餐2012信息化建设大事记" />
        <page value="20140306225511" timestamp="2014-03-06T22:55:11Z" ns="0" title="沙盒" />
        <page value="20140306230008" timestamp="2014-03-06T23:00:08Z" ns="0" title="编写语法" />
        <page value="20140307033645" timestamp="2014-03-07T03:36:45Z" ns="0" title="用起来" />
        <page value="20140307141436" timestamp="2014-03-07T14:14:36Z" ns="0" title="首页" />
      </results>
    </querypage>
  </query>
</api>