abstract：<!DOCTYPE html><html><head> <title>js日期对象的应用</title></head><body onload="startTime()"> <p id="p"></p><script type="tex
<!DOCTYPE html>
<html>
<head>
<title>js日期对象的应用</title>
</head>
<body onload="startTime()">
<p id="p"></p>
<script type="text/javascript">
// 时钟案例
function startTime(){
var myday = new Date();//实例化时期对象
var y = myday.getFullYear(); //获取年份
var h = myday.getHours(); //获取小时
var m = myday.getMinutes(); //获取分钟
var s = myday.getSeconds(); //获取秒
var m = checkTime(m);
var s = checkTime(s);
t=setTimeout(function(){startTime()},500);
document.getElementById("p").innerHTML = y + " " +h+":"+m+":"+s;
}
function checkTime(i){
if(i<10){
i = "0"+i;
}
return i;
}
</script>
</body>
</html>
Correcting teacher：灭绝师太Correction time：2019-03-18 09:19:05
Teacher's summary：作业练习完成的不错,知识点不要仅限于老师的上课知识,需要课外拓展