关于如何用html做网站总共时间代码

<span id=”runtime_span” style=”color: #9b51e0;font-weight:bold”></span>

<script type=”text/javascript”>

function show_runtime(){

  window.setTimeout(“show_runtime()”,1000);

  X = new Date(“01/06/2016 5:22:00”);//这里修改时间

  Y = new Date();

  T = (Y.getTime()-X.getTime());

  M = 24*60*60*1000;

  a = T/M;

  A = Math.floor(a);

  b = (a-A)*24;

  B = Math.floor(b);

  c = (b-B)*60;

  C = Math.floor((b-B)*60);

  D = Math.floor((c-C)*60);

  runtime_span.innerHTML=”本站已经稳定运行: “+A+”天”+B+”小时”+C+”分”+D+”秒”

}

show_runtime();

</script>