<!DOCTYPE?HTML>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
<title>計(jì)時器</title>
</head>
<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="stopCont()"??/>
??</form>
</body>
</html>
2015-02-25