<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",25,"大一"],["小E","女",21,"四"],["小F","男",22,"大一"],["小G","女",21,"大二"],["小H","女",24,"大三"],["小I","女",21,"大一"],["小J","男",22,"大三"]];
var arr=new Array();
var n=0;
//第一次筛选，找出都是大一的信息
for(var i=0;i<infos.length;i++){
if(infos[i][3]=="大一"){
document.write(infos[i][0]+infos[i][1]+infos[i][2]+infos[i][3]+"<br/>");
arr[n]=infos[i];
n++;
}
}
//第二次筛选，找出都是女生的信息
for(n=0;n<arr.length;n++){
if(infos[n][1]=="女")
{
document.write(arr[n][0]+arr[n][1]+arr[n][2]+arr[n][3]+"<br/>");
}
}
</script>
