Date对象
设置日期的几种格式:
new Date("May 25,2016");
new Date("2016/9/10,12:20:33");
new Date(2016,9,10);
当前系统时间:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>当前系统时间</title> </head> <body> <div>当前时间:<span id="show"></span></div> <script> setInterval(function() { var date = new Date(); var show = document.getElementById('show'); var week = ['星期日','星期一','星期二','星期三','星期四','星期五','星期六']; //判断数字,数字小于10显示两位数字效果 function checkTime(i) { if (i < 10) { i = '0' + i; } return i; } for (var i = 0; i < week.length; i++) { if (date.getDay() == i) { show.innerHTML = week[i] + date.getFullYear() + '年' + checkTime((date.getMonth() + 1)) + '月' + checkTime(date.getDate()) + '日' + checkTime(date.getHours()) + '时' + checkTime(date.getMinutes()) + '分' + checkTime(date.getSeconds()) + '秒' + date.getMilliseconds() + '毫秒'; } } }, 1); </script> </body> </html>