哪里错了？-慕课网

哪里错了？

来源：8-1 window对象

琢骨Lee

2016-07-01 16:00

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>window对象</title>
<script type="text/javascript">
    function wopen(){
        alert("欢迎来到慕课网！");
        var satrt=confirm("是否打开慕课网？");
        if(start==true){
            window.open('http://www.imooc.com','_blank','width=600 height=400');
        }
        else{
            alert("再见!");
        }
        }

</script>
</head>
<body>
<form>
<input type="button" value="点击我，打开新窗口" onclick="wopen()" />
</form>
</body>
</html>