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                        /JavaScript进阶篇

我没定义infos为二维数组啊可以直接当二维用呀？？

<!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=new Array();
 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<9;i++){
     if(infos[i][1]=="女" && infos[i][3]=="大一" ){
         document.write(infos[i]+"<br>");
     }
     }

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