                        课程
                    
                        /前端开发
                        
                            /JavaScript
                        
                        /JavaScript进阶篇

各位大佬帮忙看看，哪出错了没有输出

感谢各位大佬

<!DOCTYPE HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>流程控制语句</title>
<script type="text/javascript">
var infos = [
    ['小A','女',21,'大一'],
    ['小B','男',23,'大三'],
    ['小C','男',24,'大四'],
    ['小D','女',21,'大一'],
    ['小E','女',22,'大四'],
    ['小F','男',21,'大一'],
    ['小G','女',22,'大二'],
    ['小H','女',20,'大三'],
    ['小I','女',20,'大一'],
    ['小J','男',20,'大三']

];
for(var i = 0; i<10;i++)
{
   if( infos[i][3]=="大一")
   {
       if (infos[i][1]=="女")
       {
            document.write(infos[i][0]+"<br>");
       }
   }
}

</script>
</head>
<body>
</body>
</html>