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js
/
test21-2.html

<!DOCTYPE html>
<html>
    <head>
        <title>21Javascript HTML BOM History、Navigator和Cookie</title>
        <meta charset="UTf-8">
    </head>
    <body>
        <h1>21Javascript HTML BOM History、Navigator和Cookie 返回页面</h1>
        <div id = "demo"></div>
        <script>
            //返回功能实现
            function goBack(){
                window.history.back();
            }
        </script>
        <input type = "button" value="back" onclick="goBack()">
    </body>
</html>