C++框架如何通过模块化设计提升可扩展性和可维护性？

// logger_interface.h
class LoggerInterface {
public:
    virtual void log(const std::string& message) = 0;
    virtual ~LoggerInterface() {}
};

// console_logger.h
#include "logger_interface.h"
class ConsoleLogger : public LoggerInterface {
public:
    void log(const std::string& message) override {
        std::cout << message << std::endl;
    }
};

// file_logger.h
#include "logger_interface.h"
class FileLogger : public LoggerInterface {
public:
    FileLogger(const std::string& filename) {
        // 打开文件进行日志记录
    }

    void log(const std::string& message) override {
        // 将日志写入文件
    }
};

// main.cpp
#include "logger_interface.h"
#include "console_logger.h"
#include "file_logger.h"

int main() {
    LoggerInterface* console_logger = new ConsoleLogger();
    console_logger->log("日志到控制台");

    LoggerInterface* file_logger = new FileLogger("log.txt");
    file_logger->log("日志到文件");

    delete console_logger;
    delete file_logger;

    return 0;
}