代碼測試正確，僅供參考！
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>定時器</title>
<script type="text/javascript">
? var attime;
? function clock(){
? ? var time=new Date();
? ? attime= time.getHours()+"時"+time.getMinutes()+"分"+time.getSeconds()+"秒"
? ? document.getElementById("clock").value = attime;
? }
? ?setInterval(clock,1000) ;
</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50"? />
</form>
</body>
</html>
2020-08-03
woc，這個輸出的這個時間，還會動也