结果显示为什么是标准时间格式和时分秒格式交替出现？

源自：8-3 计时器setInterval()

结果显示为什么是标准时间格式和时分秒格式交替出现？

<html>

<head>

var attime;

function clock(){

var time=new Date();

attime=time.getHours()+":"+time.getMinutes()+":"+time.getSeconds() ;

document.getElementById("clock").value = attime;

}

var int=setInterval(clock,2000) ;

</script>

</head>

<body>

<form>

</form>

</body>

</html>

结果显示，先是显示：Sat Aug 04 2018 17:27:19 GMT+0800 (中国标准时间)

再显示：17:27:19

提问者：phoenix_0010 2018-08-04 17:27

个回答

qq_夏佐_0

2018-11-28 18:32:48

我的代码：这样也可以：setInterval("clock()",100);

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>定时器</title>
<script type="text/javascript">
var attime;
function clock(){
var time=new Date();
attime= time.getHours() + ":" + time.getMinutes() + ":" + time.getSeconds();

document.getElementById("clock").value = attime;
}

setInterval("clock()",100);

</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50" />
</form>
</body>
</html>

0
qq_夏佐_0

2018-11-28 18:24:29

我的代码：

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>定时器</title>
<script type="text/javascript">
var attime;
function clock(){
var time=new Date();
attime= time.getHours() + ":" + time.getMinutes() + ":" + time.getSeconds();

document.getElementById("clock").value = attime;
}

setInterval(clock,100);

</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50" />
</form>
</body>
</html>

0
_阿困君_

2018-10-08 14:23:26

浏览器刷新后重新提交代码

0
慕虎144582

2018-09-27 14:27:11

<script type="text/javascript">
var attime;
function clock(){
var time=new Date();
var h = time.getHours();
var i = time.getMinutes();
var s = time.getSeconds();
var attime = check(h)+":"+check(i)+":"+check(s);
document.getElementById("clock").value = attime;
}

function check(s){
if(s<10){
return "0"+s;
}else{
return s;
}
}
setInterval("clock()",1000);

</script>

0
沐沐26

2018-08-05 20:02:25

我把你的代码粘贴到我本地运行只显示时分秒格式

0