< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > < html xmlns = "http://www.w3.org/1999/xhtml" > < head > < meta http - equiv = "Content-Type" content = "text/html; charset=utf-8" / > < title > 电子时钟 < / title > < script > window.onload = function () { showTime(); } function checkTime(i) { if (i < 10) { i = "0" + i; } return i; } function showTime() { var myDate = new Date(); var year = myDate.getFullYear(); var month = myDate.getMonth() + 1; var date = myDate.getDate(); var day = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六']; var hour = myDate.getHours(); var minute = myDate.getMinutes(); minute = checkTime(minute); var second = myDate.getSeconds(); second = checkTime(second); document.getElementById("show").innerHTML = year + '年' + month + '月' + date + '日' + day[myDate.getDay()] + hour + ':' + minute + ':' + second; setTimeout(showTime, 1000); } < / script > < / head > < body > < div id = "show" > < / div > < / body > < / html >