JavaScript显示时间并更新

来源:互联网 发布:linux使用 编辑:程序博客网 时间:2024/05/01 12:40
<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <title>时间</title></head><body>    <div id="timer"></div></body><script type="text/javascript" src="time2.js"></script></html>
JavaScript文件
function updateTimer() {    var date = new Date();    var year = date.getFullYear();    var month = date.getMonth() + 1;    month = appendZero(month);    var day = date.getDate();    day = appendZero(day);    var hour = date.getHours();    hour = appendZero(hour);    var minute = date.getMinutes();    minute = appendZero(minute);    var timer = document.getElementById("timer");    timer.innerText = year + "-" + month + "-" + day + " " + hour + ":" + minute;    setTimeout("updateTimer()", 500);}function appendZero(num) {    if(num < 10) {        num = "0" + num;    }    return num;}window.onload = function () {    updateTimer();}
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