JS匿名函数&闭包

2022-11-08 22:03:50

<html>

    <head>

        <title>

        test

        </title>

    </head>

    <body>

        <script type="text/javascript">

            (function (){

                //局部变量

                var a=1;

                var b=3;

                alert(a+b);

            })();

            //undefinded

            alert(a);

        </script>

    </body>

</html>

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