Alyssa_Lee
2014-12-10 14:48
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>计时器</title> </head> <script type="text/javascript"> var num=0; function startCount() { document.getElementById('count').value=num; num=num+1; setTimeout("startCount()",1000); } setTimeout("startCount()",0); </script> </head> <body> <form> <input type="text" id="count" /> </form> </body> </html>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>计时器</title>
</head>
<script type="text/javascript">
var num=0;
function startCount() {
document.getElementById('count').value=num;
num=num+1;
setTimeout("startCount()",500);
}
setTimeout("startCount()",500;
</script>
</head>
<body>
<form>
<input type="text" id="count" />
</form>
</body>
</html>
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