[求助]一个时间小例子为什么不显示呢？

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<!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>无标题文档</title>
</head><body>
<script type="text/javascript">
function Time(){
var tadyDay=new Date();
date=tadyDay.getDate();
month=tadyDay.getMonth()+1; //为什么月份+1呢？
year=tadyDay.getFullYear()
day=tadyDay.getDay();
hours=tadyDay.getHours();
minutes=tadyDay.getMinutes();
seconds=tadyDay.getSeconds();
str = "<span>"+year+"</span>"+"年"+"<span>"+month+"月"+"</span>"+"<span>"+date+"</span>"+"日"+"<span>"+hours+"</span>"+"时"+"<span>"+minutes+"</span>"+"分"+"<span>"+seconds+"</span>"+"秒";
document.getElementById('time').innerHTML = str;
}
setInterval('Time()',1000);
</script>
<div id="time"></div>
</body>
</html>
+1
楼主
这句话放在Time()中
document.write("<span>"+year+"</span>"+" 年"+"<span>"+month+"月"+"</span>"+"<span>"+date+"< /span>"+"日"+"<span>"+hours+"</span>"+" 时"+"<span>"+minutes+"</span>"+" 分"+"<span>"+seconds+"</span>"+"秒");
貌似会每一秒就打出一遍出来。
document.write 尽量少用此函数她在加载时，是在本文档写入。setTimeout 他会写入新文档
+1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<script type="text/javascript">
function Time(){
var tadyDay=new Date();
date=tadyDay.getDate();
month=tadyDay.getMonth()+1;
year=tadyDay.getFullYear()
day=tadyDay.getDay();
hours=tadyDay.getHours();
minutes=tadyDay.getMinutes();
seconds=tadyDay.getSeconds();
document.getElementById("timer").innerHTML=("<span>"+year+"</span>"+"年"+"<span>"+month+"月"+"</span>"+"<span>"+date+"</span>"+"日"+"<span>"+hours+"</span>"+"时"+"<span>"+minutes+"</span>"+"分"+"<span>"+seconds+"</span>"+"秒");
setTimeout("Time()",1000)
}
window.onload = function(){
Time();
}
</script>
</head>
<body>
<div id = "timer"></div>
</body>
</html>简单的写法:有个容器: <div id= "clock"></div>setInterval("clock.innerHTML=new Date().toLocaleString()+' 星期'+'日一二三四五六'.charAt(new Date().getDay());",1000);
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">

    <title>My JSP 'ok.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">

<script type="text/javascript">
function Time(){
var tadyDay=new Date();
date=tadyDay.getDate();
month=tadyDay.getMonth()+1;
year=tadyDay.getFullYear();
day=tadyDay.getDay();
hours=tadyDay.getHours();
minutes=tadyDay.getMinutes();
seconds=tadyDay.getSeconds();
document.getElementById("todayTime").innerHTML=("<span>"+year+"</span>"+"年"+"<span>"+month+"月"+"</span>"+"<span>"+date+"</span>"+"日"+"<span>"+hours+"</span>"+"时"+"<span>"+minutes+"</span>"+"分"+"<span>"+seconds+"</span>"+"秒");
}
window.onload=function(){setInterval("Time()",1000);}
</script>  </head>

  <body>
<div id="todayTime"></div>
  </body>
</html>setTimeout() 只执行 code 一次。如果要多次调用，请使用 setInterval() 或者让 code 自身再次调用 setTimeout()。
to T5500 month=tadyDay.getMonth()+1; 月分加1是因为getMonth是返回0-11来表示月分的。