1 var t = setTimeout(load_time, 1000); 2         function load_time() { 3             clearTimeout(t); //清除定时器 4             var dt = new Date() 5             var a = dt.getFullYear(); //年 6             var b = dt.getMonth() + 1; //月份 7             var c = dt.getDay(); //日期 8             var h = dt.getHours(); //获取时 9             var m = dt.getMinutes(); //获取分10             var s = dt.getSeconds(); //获取秒11             var time = a + "-" + b + "-" + c + " " + h + ":" + m + ":" + s;12             document.getElementById("ti").innerHTML = "当前时间：" + time;13             t = setTimeout(load_time, 1000); //设定定时器，循环运行14         }