日期:2014-05-17  浏览次数:20491 次

javascript中怎样在页面实现显示当前系统时间,并且要每时每刻都要刷新
如题:在客户端显示当前系统时间 如 :2011/11/6 14:55 并且要与系统时间同步的那种

------解决方案--------------------
HTML code

<!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>demo</title>
    <script >
        window.onload=function(){
            showTime();
        }
        var showTime =function(){
            var nowTime = new Date();
            document.getElementById("msg").innerHTML = nowTime;
           
            setTimeout("getTime()",100);
        }
</script>
</head>
<body>
  <div id="msg">sdf
  </div>
</body>
</html>

------解决方案--------------------
setTimeout("getTime()",100);
=>
setTimeout("showTime()",100); 
写快了 。
------解决方案--------------------
HTML code
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
function displayDateTime(XelementID) {
    var myDate = new Date();
    var year = myDate.getFullYear();
    var month = myDate.getMonth() + 1;
    var date = myDate.getDate();
    var day = myDate.getDay();
    switch (day) {
        case 0: day = "星期日"; break;
        case 1: day = "星期一"; break;
        case 2: day = "星期二"; break;
        case 3: day = "星期三"; break;
        case 4: day = "星期四"; break;
        case 5: day = "星期五"; break;
        case 6: day = "星期六"; break;
    }
    var hour = myDate.getHours();
    var minute = myDate.getMinutes();
    var second = myDate.getSeconds();
    if (hour < 10)
        hour = "0" + hour;
    if (minute < 10)
        minute = "0" + minute;
    if (second < 10)
        second = "0" + second;
    var displayValue = year + "年" + month + "月" + date + "日" + " 

" + day + "  " + hour + ":" + minute + ":" + second;
    document.getElementById(XelementID).innerHTML = displayValue;
    var t = setTimeout(function(){displayDateTime(XelementID);}, 

500);
}
</script>
</head>
<body>
    <div id="div1"></div>
    <script>displayDateTime("div1")</script>
</body>
</html>