幫忙看一下
<!DOCTYPE ?HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>流程控制語句</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"]];
?//第一步把之前的數據寫成一個數組的形式,定義變量為 infos
?for(i=0,i<=9,i++){
? ? ?if(infos[i][3]=="大一"){
? ? ? ? ?if(infos[i][1]=="女"){
? ? ? ? ? ? ?document.write(infos[i][0]+"<br>");
? ? ? ? ?}
? ? ?}
? ? ?
?}
?
?//第一次篩選，找出都是大一的信息
?
??
?//第二次篩選，找出都是女生的信息
?
?
??
</script>
</head>
<body>
</body>
</html>
沒反應啊，哪里出問題了，幫忙看一下，謝謝
2017-06-13
?for(i=0,i<=9,i++) for循環表達式之間用；分割