html代码如下：

复制代码 代码如下:

<div id="showTime"></div>

javascript 代码如下：时间显示格式为：2011-04-04 星期二 12:09:34

复制代码 代码如下:

function startTime() {

try{

var today = new Date();

var year = today.getFullYear();

var month = checkNum(today.getMonth()+1);

var date = checkNum(today.getDate());

var day = today.getDay();

var hour = checkNum(today.getHours());

var minute = checkNum(today.getMinutes());

var second = checkNum(today.getSeconds());

switch(day) {

case 1:

day = "一";

break;

case 2:

day = "二";

break;

case 3:

day = "三";

break;

case 4:

day = "四";

break;

case 5:

day = "五";

break;

case 6:

day = "六";

break;

case 7:

day = "日";

break;

}

var fullTime = year+"-"+month+"-"+date+" "+"星期"+day+" "+hour+":"+minute+":"+second;

document.getElementById("showTime").innerHTML = fullTime;

setInterval('startTime()', 1000);

}catch(e) {

alert(e.description);

}

}

function checkNum(num) {

if(num<10) {

num = "0"+num;

}

return num;

}