value问题

源自：8-3 计时器setInterval()

value问题

<!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;

document.getElementById("clock").value = attime;//这里得value获取得是哪里的值？

}

var int = setInterval(clock , 1000) ;

</script>

</head>

<body>

<form>

<input type="text" id="clock" size="50" />

</form>

</body>

</html>

<!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;

document.getElementById("clock")= attime;

}

var int = setInterval(clock , 1000) ;

</script>

</head>

<body>

<form>

<input type="text" id="clock" size="50" />

</form>

</body>

</html>

提问者：慕丝8496262 2019-03-19 15:46

个回答

慕莱坞3097671

2019-03-19 17:19:27

value获得的就是attime中的值，而attime是由time赋值给它的，所以value最终获得的标准的中国时间

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