javascript undefined
<scripttype="text/javascript"language="javascript">functiontime(){if(!document.layers...
<script type="text/javascript" language="javascript">
function time(){
if (!document.layers&&!document.all)
return
var Timer=new Date()
var hours=Timer.getHours()
var minutes=Timer.getMinutes()
var seconds=Timer.getSeconds()
var noon="AM"
if (hours>12){
noon="PM"
hours=hours-12
}
if (hours==0)
hours=12
if (minutes<=9)
minutes="0"+minutes
if (seconds<=9)
seconds="0"+seconds
//change font size here to your desire
var myclock="<font size='4' face='Arial' color=blue>"+hours+":"+minutes+":"
+seconds+" "+noon+"</b></font>"
if (document.layers){
document.layers.position.document.write(myclock)
document.layers.position.document.close()
}
else if (document.all)
position.innerHTML=myclock
setTimeout("Time()",1000)
}
</script>
<script type="text/javascript">
document.write(time());
</script>
实时视图，只出现了两个undefined，请问为什么？ 展开
function time(){
if (!document.layers&&!document.all)
return
var Timer=new Date()
var hours=Timer.getHours()
var minutes=Timer.getMinutes()
var seconds=Timer.getSeconds()
var noon="AM"
if (hours>12){
noon="PM"
hours=hours-12
}
if (hours==0)
hours=12
if (minutes<=9)
minutes="0"+minutes
if (seconds<=9)
seconds="0"+seconds
//change font size here to your desire
var myclock="<font size='4' face='Arial' color=blue>"+hours+":"+minutes+":"
+seconds+" "+noon+"</b></font>"
if (document.layers){
document.layers.position.document.write(myclock)
document.layers.position.document.close()
}
else if (document.all)
position.innerHTML=myclock
setTimeout("Time()",1000)
}
</script>
<script type="text/javascript">
document.write(time());
</script>
实时视图，只出现了两个undefined，请问为什么？ 展开
2个回答
展开全部
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head>
<body>春稿
<div id="position"></div>
<script type="text/javascript" language="javascript">
function time(){
try{
var Timer=new Date();
var hours=Timer.getHours();
var minutes=Timer.getMinutes();
var seconds=Timer.getSeconds();
var noon="AM";
if (hours>12){
noon="PM";
hours=hours-12;
}
if (hours==0){
hours=12;
}
if (minutes<=9){
minutes="0"+minutes;
}
if (seconds<=9){
seconds="0"+seconds;
}
var myclock="<font size='4' face='Arial' color=blue>"+hours+":"+minutes+":"+seconds+"州做 "+noon+"</b></font>";
document.getElementById("position").innerHTML=myclock;
setTimeout("time()",1000);
}catch(e){}
}
time();
</script>
</body>
</html>
---------------------------------
OK了扒迹孝
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head>
<body>春稿
<div id="position"></div>
<script type="text/javascript" language="javascript">
function time(){
try{
var Timer=new Date();
var hours=Timer.getHours();
var minutes=Timer.getMinutes();
var seconds=Timer.getSeconds();
var noon="AM";
if (hours>12){
noon="PM";
hours=hours-12;
}
if (hours==0){
hours=12;
}
if (minutes<=9){
minutes="0"+minutes;
}
if (seconds<=9){
seconds="0"+seconds;
}
var myclock="<font size='4' face='Arial' color=blue>"+hours+":"+minutes+":"+seconds+"州做 "+noon+"</b></font>";
document.getElementById("position").innerHTML=myclock;
setTimeout("time()",1000);
}catch(e){}
}
time();
</script>
</body>
</html>
---------------------------------
OK了扒迹孝
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展开全部
这js写的太NB了....
setTimeout("Time()",1000)这句核郑话雹租干啥的,,要写也应该是setTimeout("time()",1000)吧..
position.innerHTML=myclock--这里的position 在文档里应该有个id为position的改肆颂元素吧,才不会undefined.
document.write(time());这句话,time有返回值吗...没有当然是undefined了..
setTimeout("Time()",1000)这句核郑话雹租干啥的,,要写也应该是setTimeout("time()",1000)吧..
position.innerHTML=myclock--这里的position 在文档里应该有个id为position的改肆颂元素吧,才不会undefined.
document.write(time());这句话,time有返回值吗...没有当然是undefined了..
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