老哥们帮我看看为什么执行不起
<!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 < infos.length;i++){
if(infos[i][3]=='大一'&& infos[i][1]=='女'){
document.write(infos[i][0]+"is ok"+"<br>");
}
}
</script>
</head>
<body>
</body>
</html>
谢谢各位大佬了