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]+"<br/>");

}

}