為什么清除定時(shí)器無效
<!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="stopCounut()"/>
? </form>
</body>
</html>
2019-09-26
<input type="button" value="Stop" onclick="stopCounut()"/>
stopCount()
2019-05-08
倒數(shù)第四行,最后函數(shù)名稱錯(cuò)誤
2019-05-04
onclick里面的stopCount()打錯(cuò)了