<html manifest="demo_html.appcache"><meta charset="UTF-8"><body><script >function getDateTime(){var d = new Date();d.setFullYear(2020,10,3);var x = document.getElementById("timePara");x.innerHTML=d;}</script><p id="timePara"><button onclick="getDateTime()">获取日期和时间</button></p><p><img src="/upload/images/201509/cfcc6c13c28.gif" width="336" height="69"></p><p>尝试打开 <a href="tryhtml5_html_manifest.htm" target="_blank">这个页面</a>, 在离线的状态下重新载入这个页面，页面也可以访问。</p></body></html>