javascript計(jì)時(shí)器的實(shí)現(xiàn)

來(lái)源：懂視網(wǎng) 責(zé)編：小采時(shí)間：2020-11-27 20:11:58

javascript計(jì)時(shí)器的實(shí)現(xiàn)

javascript計(jì)時(shí)器的實(shí)現(xiàn):<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>自動(dòng)增長(zhǎng)計(jì)時(shí)器</title> <script type="text/javascript"> var atime; func

推薦度：

點(diǎn)擊下載本文 文檔為doc格式

導(dǎo)讀javascript計(jì)時(shí)器的實(shí)現(xiàn):<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>自動(dòng)增長(zhǎng)計(jì)時(shí)器</title> <script type="text/javascript"> var atime; func

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>自動(dòng)增長(zhǎng)計(jì)時(shí)器</title>
<script type="text/javascript">
 var atime;
 function clock(){
 var time=new Date(); 
 atime=time.getHours()+":"+time.getMinutes()+":"+time.getSeconds();
 document.getElementById("clock").value = atime;
 }
 setInterval(clock,1000); 
</script>
</head>
<body>
<form>
<input type="text" id="clock" size="50" style="background:#000;color:#00ff00;width:55px"; />
</form>
</body>
</html>

效果：

顯示當(dāng)前時(shí)間，自動(dòng)增長(zhǎng)

添加按鈕的計(jì)時(shí)器（用于開(kāi)始和暫停）

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>計(jì)時(shí)器</title>

<script type="text/javascript">
 var num=0;
 var i;
 function startCount(){
 document.getElementById('count').value=num;
 num=num+1;
 i=setTimeout("startCount()",1000);
 }
 function stopCount(){
 clearTimeout(i);
 }
</script>
</head>
<body>
 <form>
 <input type="text" id="count" />
 <input type="button" value="Start" onclick="startCount()"/>
 <input type="button" value="Stop" onclick="stopCount()" />
 </form>
</body>
</html>

效果：