用Javascript就可以实现: <script type="text/javascript"> function show() { var time=new Date(); var year=time.getYear(); var month=time.getMonth()+1; var day=time.getDate(); var hours=time.getHours(); var minute=time.getMinutes(); var sconds=time.getSeconds(); var ss=""; var mi=null; var sc=null; if(hours>=0&&hours<12) { ss="上午好!"; }else if(hours>=12&&hours<24) { ss="下午好!"; } if(minute<10){ mi="0"+minute; }else{ mi=minute; } if(sconds<10){ sc="0"+sconds; }else{ sc=sconds; } var st="今天日期:<font size='2' style='color:red;'>"+year+"年"+month+"月"+day+"日</font>"+ " "+"现在时间:<font size='2' style='color:red;'>"+ hours+":"+mi+":"+sc+"</font>"; document.getElementById("aaa").innerHTML=ss; document.getElementById("mydate").innerHTML=st; window.setTimeout("show()",1000); } </script>
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