function showtime(){ let dt=new Date(); let yy=dt.getFullYear(); let mm=dt.getMonth()+1; let dd=dt.getDate(); let hh=dt.getHours(); let mi=dt.getMinutes(); let ss=dt.getSeconds(); let dy=dt.getDay(); let wk="星期"+"日一二三四五六".charAt(dy); let sd="上午"; if(hh>12){ hh=hh-12; sd="下午"; } return yy+"年"+mm+"月"+dd+"日"+" "+wk+" "+sd+hh+":"+mi+":"+ss+" "; }