帮忙看一下
<!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","大一"],["小C","男","22","大一"],["小D","女","21","大一"],["小E","女","22","大一"],["小F","男","21","大一"],["小G","女","22","大一"],["小H","女","20","大一"],["小I","女","20","大一"],["小J","男","20","大一"]];
//第一步把之前的数据写成一个数组的形式,定义变量为 infos
for(i=0,i<=9,i++){
if(infos[i][3]=="大一"){
if(infos[i][1]=="女"){
document.write(infos[i][0]+"<br>");
}
}
}
//第一次筛选，找出都是大一的信息
//第二次筛选，找出都是女生的信息
</script>
</head>
<body>
</body>
</html>
没反应啊，哪里出问题了，帮忙看一下，谢谢
