使用js实现“打开窗口开始计时”的功能
const start =newDate();
function timer(start){
var now =newDate();
var det = now - start;
console.log(det);
now.setTime(det);
now.setHours(0);
document.getElementById("id_name").innerHTML = now.toLocaleTimeString();
}
setInterval(function(){timer(start)},1000);
