jquery閉包

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title></title>
    <script type="application/javascript" src="./js/jquery.js"></script>
    <script type="application/javascript">
        (function($){
            $(function(){
                t();
            })
            var foo;
            var bar=function(){
                foo="aa";
                alert(foo);
            }
            $.adt=bar;
        })(jQuery)
        function t(){
            alert("dfdfdfdfd");
        }

    </script>
</head>
<body>

閉包能夠理解爲一個訪問一個函數內部變量的函數
javascript

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