求助，时间无法刷新

xu395422824 2011-04-01 06:50:00

<html>
<head>
<title> 这是一个简易时钟 </title>

<script type="text/javascript">
function startTime(){
today = new Date();
if(today.getHours()<12){
document.write("<br>上午好!</br>");
}else if(today.getHours()<18){
document.write("<br>下午好!</br>" );
}else {
document.write("<br>晚上好！</br>");
}

var year = today.getFullYear();
var month = today.getMonth()+1;
var day = today.getDate();
var hour = today.getHours();
var minute = today.getMinutes();
var second = today.getSeconds();
var hour=today.getHours();
var minute=today.getMinutes();
var second=today.getSeconds();

time ="今日的日期是：" +year+"年"+month+"月"+day+"日"+"<br>"+"现在的时间是:" + hour+":"+minute+":"+second;
document.write(time);
setTimeout('startTime()',1000);
}
</script>
</head>

<body onload="startTime()">
</body>

</html>

...全文

59 7 打赏收藏转发到动态举报

写回复

用AI写文章

7 条回复

切换为时间正序

请发表友善的回复…

发表回复

Mr-Jee 2011-04-01

打赏
举报

[Quote=引用 5 楼 xu395422824 的回复:]

write()方法有什么弊端吗？
[/Quote]
write()是在load（类load）阶段用的
之后用没效果~~~~~

xu395422824 2011-04-01

打赏
举报

<html>
<head>
<title> 这是一个简易时钟 </title>

<script type="text/javascript">
function startTime(){
today = new Date();

var year = today.getFullYear();
var month = today.getMonth()+1;
var day = today.getDate();
var hour = today.getHours();

/*
if(hour<12){
document.write("<br>上午好!</br>");
}else if(hour<18){
document.write("<br>下午好!</br>" );
}else {
document.write("<br>晚上好！</br>");
}
*/
var minute = today.getMinutes();
var second = today.getSeconds();
var hour=today.getHours();
var minute=today.getMinutes();
var second=today.getSeconds();

document.getElementById('txt').innerHTML ="今日的日期是：" +year+"年"+month+"月"+day+"日"+"<br>"+"现在的时间是:" + hour+":"+minute+":"+second;
setTimeout('startTime()',1000);
}
</script>
</head>

<body onload="startTime()">
<div id='txt'></div>
</body>

</html>

为何上面的注掉之后便可以刷新了呢？

xu395422824 2011-04-01

打赏
举报

write()方法有什么弊端吗？

KK3K2005 2011-04-01

打赏
举报

  function startTime(){

  var today = new Date();

  var time='';

  if(today.getHours()<12){

  time +="<br>上午好!</br>";

  }else if(today.getHours()<18){

	  time+="<br>下午好!</br>" ;

  }else {

	time+="<br>晚上好！</br>";

  }

  

var year = today.getFullYear();

var month = today.getMonth()+1;

var day = today.getDate();

var hour = today.getHours();

var minute = today.getMinutes();

var second = today.getSeconds();

var hour=today.getHours();

var minute=today.getMinutes();

var second=today.getSeconds();



time +="今日的日期是：" +year+"年"+month+"月"+day+"日"+"<br>"+"现在的时间是:" + hour+":"+minute+":"+second;

document.body.innerHTML=time;

setTimeout(startTime,1000);

  }