提交顯示成功，但是不能運行。在其他環境測試還是不能運行，求解？
不能運行，代碼如下：
<!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);
??}
??var?count=startCount();
</script>
</head>
<body>
<form>
<input?type="text"?id="count"?/>
</form>
</body>
</html>
2015-02-25
因為沒有window.onload
<!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"> ????window.onload?=?function()?{ ??????startCount(); ????}; ??var?num=0; ??function?startCount()?{ ????document.getElementById('count').value=num; ????num=num+1; ?????setTimeout("startCount()",1000); ??} ??var?count=startCount(); </script> </head> <body> <form> <input?type="text"?id="count"?/> </form> </body> </html>