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>
    <logevents lestart="2014-11-16T12:54:43Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="233" ns="6" title="文件:增加岗位.jpg" pageid="140" type="upload" action="upload" img_sha1="94dffamucsh9g0d1xtycn2mzf3jrsak" img_timestamp="2014-11-16T13:44:35Z" user="Xueying" timestamp="2014-11-16T13:44:35Z" comment="" />
      <item logid="232" ns="6" title="文件:新增部门.jpg" pageid="138" type="upload" action="overwrite" img_sha1="s45fcl6mcynjiwmvq5zqm3dcil5o5ff" img_timestamp="2014-11-16T13:40:29Z" user="Xueying" timestamp="2014-11-16T13:40:29Z" comment="" />
      <item logid="231" ns="6" title="文件:修改.jpg" pageid="139" type="upload" action="upload" img_sha1="jsj1e26g4uqkx0ss3b1s29f6rwzzhgo" img_timestamp="2014-11-16T13:40:11Z" user="Xueying" timestamp="2014-11-16T13:40:11Z" comment="" />
      <item logid="230" ns="6" title="文件:新增部门.jpg" pageid="138" type="upload" action="upload" img_sha1="s45fcl6mcynjiwmvq5zqm3dcil5o5ff" img_timestamp="2014-11-16T13:38:32Z" user="Xueying" timestamp="2014-11-16T13:38:32Z" comment="" />
      <item logid="229" ns="6" title="文件:部门列表.jpg" pageid="137" type="upload" action="upload" img_sha1="jsj1e26g4uqkx0ss3b1s29f6rwzzhgo" img_timestamp="2014-11-16T13:38:14Z" user="Xueying" timestamp="2014-11-16T13:38:14Z" comment="" />
      <item logid="228" ns="6" title="文件:注册提醒.jpg" pageid="136" type="upload" action="upload" img_sha1="dljyb0s448uk1imi5wcvzs7uan9ldbe" img_timestamp="2014-11-16T12:56:19Z" user="Xueying" timestamp="2014-11-16T12:56:19Z" comment="" />
      <item logid="227" ns="6" title="文件:注册.jpg" pageid="130" type="upload" action="overwrite" img_sha1="2pjt3y6d8jryypuljbta9z55kl76x0d" img_timestamp="2014-11-16T12:56:06Z" user="Xueying" timestamp="2014-11-16T12:56:06Z" comment="" />
      <item logid="226" ns="6" title="文件:志愿者详细.jpg" pageid="135" type="upload" action="upload" img_sha1="hkzef39hjsvls0eegsx75s4ym8uqnon" img_timestamp="2014-11-16T12:55:55Z" user="Xueying" timestamp="2014-11-16T12:55:55Z" comment="" />
      <item logid="225" ns="6" title="文件:邮件验证.jpg" pageid="134" type="upload" action="upload" img_sha1="rx8ibq6smciz8rwnk76xfslma7us10w" img_timestamp="2014-11-16T12:55:43Z" user="Xueying" timestamp="2014-11-16T12:55:43Z" comment="" />
      <item logid="224" ns="6" title="文件:用户登录.jpg" pageid="133" type="upload" action="upload" img_sha1="ndyywr6um3lvhavm1a6rsww6egi3xu6" img_timestamp="2014-11-16T12:55:33Z" user="Xueying" timestamp="2014-11-16T12:55:33Z" comment="" />
    </logevents>
  </query>
</api>