大家幫忙看一看，為什么在dreamweave的編輯器里顯示不出內容
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>邏輯與</title>
<script type="text/javascrip" language="javascript">
var numa,numb;
/*賦值*/
numa=60;
numb=70;
if(numa>=60 && numb>=60)
{
document.write("javascript考核通過!"+ "</br>"
);
}
</script>
</head>
<body>
</body>
</html>
2016-06-05
</br>??? 單標簽可以這樣寫？<br>或<br/>
2015-09-12
+"<br>"
2015-05-22
<script type="text/javascrip" language="javascript"> ?自己好好看看這行代碼？