JavaScript 利用监听实现右键检查就 Debugger

程序员文章站 2022-07-02 19:27:56
文件上传
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>文件上传</title>
</head>
<body>
    <form action="http://localhost:8080/upload" method="POST">
        <p>
            上传人: <input type="text" name="username" />
        </p>
        
        <p>
            文件1: <input type="file" name="file1" />
        </p>
        
        <p>
            文件2: <input type="file" name="file2" />
        </p>

        <input type="submit" /> | <input type="reset" />
    </form>

    <h2>右键检查试试</h2>

    <script>
        var check = (function () {
            var callbacks = [], timeLimit = 2, open = false;
            setInterval(loop, 2);
            return {
                addListener: function (fn) {
                    callbacks.push(fn);
                },
                cancleListenr: function (fn) {
                    callbacks = callbacks.filter(function (v) {
                        return v !== fn;
                    });
                }
            }
            function loop() {
                var startTime = new Date();
                debugger;

                if (new Date() - startTime > timeLimit) {
                    if (!open) {
                        callbacks.forEach(function (fn) {
                            fn.call(null);
                        });
                    }
                    open = true;
                } else {
                    open = false;
                }
            }
        })();

        check.addListener(function () {
            //alert('Open Devtool');
        });
    </script>
</body>
</html>
本文地址：https://blog.csdn.net/weixin_44953227/article/details/112576352