//获取当前时间戳(以s为单位)
var timestamp = Date.parse(new Date());
timestamp = timestamp / 1000;
//获取网页最后更新时间
var stringTime = document.lastModified;
var timestamp2 = Date.parse(new Date(stringTime));
timestamp2 = timestamp2 / 1000;
console.log(stringTime + "的时间戳为：" + timestamp2);
if(timestamp-timestamp2>100){
//重新生成网页的执行语句
}