js 立即执行函数定义方法

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        <title>js 立即执行函数定义方法</title>
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        <script type="text/javascript">
            //方法一
            (function(){})(3);
            //方法二
            (function(){}(3));
            //方法三 
            +function(){}(3);
            -function(){}(3);
            !function(){}(3);
            ~function(){}(3);
        </script>
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2022-12-23
2022-12-23