<!DOCTYPE?html>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>
<title>Math?</title>
<script?type="text/javascript">
document.write(Math.ceil(3.3)?+?"<br?/>");
document.write(Math.ceil(-0.1)?+?"<br?/>");
document.write(Math.ceil(-9.9)?+?"<br?/");
document.write(Math.ceil(8.9)?+?"<br?/>");
</script>
</head>
<body>
</body>
</html>
Math.ceil(8.9)怎么就顯示不出來呢？和別人的代碼一樣啊
開普勒
2015-12-28 14:58:54
