<script>var t = null;t = setTimeout(time, 1000); //開始运行function time() {clearTimeout(t); //清除定时器dt = new Date();var y = dt.getFullYear();var mt = dt.getMonth() + 1;var day = dt.getDate();var h = dt.getHours(); //获取时var m = dt.getMinutes(); //获取分var s = dt.getSeconds(); //获取秒document.querySelector(".showTime").innerHTML ="当前时间：" +y +"年" +mt +"月" +day +"-" +h +"时" +m +"分" +s +"秒";t = setTimeout(time, 1000); //设定定时器，循环运行}