为什么没有显示
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
</head>
<body>
<script type="text/javascript">
var score=80;
if(score>=60;)
{
document.write("你及格了");
}//*成绩大于60,及格*//
else
{document.write("你重修!")}
}
</script>
</body>
</html>