输入时间间隔，浏览器实现自动刷新

timeout=prompt("Set timeout (Second)😊;
count=0
current=location.href;
if(timeout>0)
setTimeout('reload()',1000timeout);
else
location.replace(current);
function reload(){
setTimeout('reload()',1000timeout);
count++;
console.log('每（'+timeout+'）秒自动刷新,刷新次数：'+count);
fr4me='<frameset cols='*'>\n<frame src=''+current+''/>';
fr4me+='';
with(document){write(fr4me);void(close())};
}