某日志记录器既可以支持不同的操作系统（windows和linux），还可以支持多种编程语言（java和python），并且可以使用不同的输出方式（txt和doc）。请使用桥接模式设计该系统。用Java代码实现

首先，我们定义一个桥接接口，用于连接不同的实现类和抽象类：

public interface LoggerBridge {
    void log(String message);
}

然后，我们定义一个抽象类，用于提供日志记录的基本功能：

public abstract class Logger {
    protected LoggerBridge bridge;

    public Logger(LoggerBridge bridge) {
        this.bridge = bridge;
    }

    public abstract void log(String message);
}

接下来，我们定义具体的日志实现类，例如 WindowsLogger 和 LinuxLogger：

public class WindowsLogger implements LoggerBridge {
    @Override
    public void log(String message) {
        System.out.println("Windows logger: " + message);
    }
}

public class LinuxLogger implements LoggerBridge {
    @Override
    public void log(String message) {
        System.out.println("Linux logger: " + message);
    }
}

最后，我们定义具体的日志记录器，例如 TxtLogger 和 DocLogger：

public class TxtLogger extends Logger {
    public TxtLogger(LoggerBridge bridge) {
        super(bridge);
    }

    @Override
    public void log(String message) {
        bridge.log(message + " [output as txt]");
    }
}

public class DocLogger extends Logger {
    public DocLogger(LoggerBridge bridge) {
        super(bridge);
    }

    @Override
    public void log(String message) {
        bridge.log(message + " [output as doc]");
    }
}

这样，我们就可以通过桥接模式，将不同的操作系统、编程语言和输出方式连接起来，构建出一个灵活多变的日志记录器系统。

以下是完整的 Java 代码示例：

public interface LoggerBridge {
    void log(String message);
}

public abstract class Logger {
    protected LoggerBridge bridge;

    public Logger(LoggerBridge bridge) {
        this.bridge = bridge;
    }

    public abstract void log(String message);
}

public class WindowsLogger implements LoggerBridge {
    @Override
    public void log(String message) {
        System.out.println("Windows logger: " + message);
    }
}

public class LinuxLogger implements LoggerBridge {
    @Override
    public void log(String message) {
        System.out.println("Linux logger: " + message);
    }
}

public class TxtLogger extends Logger {
    public TxtLogger(LoggerBridge bridge) {
        super(bridge);
    }

    @Override
    public void log(String message) {
        bridge.log(message + " [output as txt]");
    }
}

public class DocLogger extends Logger {
    public DocLogger(LoggerBridge bridge) {
        super(bridge);
    }

    @Override
    public void log(String message) {
        bridge.log(message + " [output as doc]");
    }
}

public class Main {
    public static void main(String[] args) {
        LoggerBridge winBridge = new WindowsLogger();
        LoggerBridge linuxBridge = new LinuxLogger();

        Logger txtWinLogger = new TxtLogger(winBridge);
        Logger docWinLogger = new DocLogger(winBridge);

        Logger txtLinuxLogger = new TxtLogger(linuxBridge);
        Logger docLinuxLogger = new DocLogger(linuxBridge);

        txtWinLogger.log("This is a message for windows");
        docWinLogger.log("This is a message for windows");

        txtLinuxLogger.log("This is a message for linux");
        docLinuxLogger.log("This is a message for linux");
    }
}