計時器沒效果
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>計時器</title>
</head>
<script type="text/javascript">
? var num=0;
? function startCount() {
? ? document.getElementById('count').value=num;
? ? num=num+1;
? ? setTimeout("startCount()"1000);?
? }
??
</script>
</head>
<body>
<form>
<input type="text" id="count" />
<input type="button" onclick="startCount()" value="s">
</form>
</body>
</html>
2016-02-17
找到問題了，丟了，號