<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>close()</title>
<script type="text/javascript">
var mywin=window.open("http://www.imooc.com","_blank",width=200,height=200,top=10,left=0);
function rec(){
var guanbi=comfirm("你是否关闭此窗口？");
if (guanbi==ture)
{
mywin.close();
document.write("窗口关闭！");
}
else{
document.write("窗口未关闭！");
}
}
</script>
</head>
<body>
<input name="button" type="button" onClick="rec()" value="点击我，弹出确认对话框" />
</body>
</html>
var mywin=window.open("http://www.imooc.com","_blank",width=200,height=200,top=10,left=0);
最后一个没加引号括起来，是confirm不是comfirm