如何在磁盘上获取目录C++的大小

#include <iostream>
#include <filesystem>

namespace fs = std::filesystem;

int main() {
    std::string directoryPath = "C:/path/to/directory";
    fs::path directory(directoryPath);

    if (fs::exists(directory) && fs::is_directory(directory)) {
        uintmax_t totalSize = 0;

        for (const auto& entry : fs::recursive_directory_iterator(directory)) {
            if (fs::is_regular_file(entry)) {
                totalSize += fs::file_size(entry);
            }
        }

        std::cout << "The size of directory " << directoryPath << " is " << totalSize << " bytes." << std::endl;
    } else {
        std::cout << "Invalid directory path." << std::endl;
    }

    return 0;
}