c++代码实现logs文件夹下每隔10min会生成一个文件夹名为当前的时间，格式为： %Y-%m-%d-%H-%M的时间文件夹，文件夹命名时间分钟必须为十的倍数，当logs文件夹的总容量超过10G时，会根据时间自动删除最早的文件夹

这是一个比较复杂的需求，需要用到系统级别的 API 来实现。下面是一份 C++ 代码实现：

#include <iostream>
#include <sstream>
#include <ctime>
#include <chrono>
#include <fstream>
#include <filesystem>

namespace fs = std::filesystem;

// 文件夹大小，单位 byte
const uint64_t kFolderSizeLimit = 10 * 1024 * 1024 * 1024;

// 创建时间格式字符串
std::string GetTimeString() {
  std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
  std::time_t t = std::chrono::system_clock::to_time_t(now);
  std::tm tm = *std::localtime(&t);
  std::stringstream ss;
  ss << std::put_time(&tm, "%Y-%m-%d-%H-%M");
  return ss.str();
}

// 创建新文件夹
void CreateNewFolder() {
  std::string folder_name = GetTimeString();
  int minute = std::stoi(folder_name.substr(folder_name.length() - 2));
  if (minute % 10 != 0) {
    minute = minute / 10 * 10;
    folder_name = folder_name.substr(0, folder_name.length() - 2) + std::to_string(minute);
  }
  fs::create_directory("logs/" + folder_name);
  std::cout << "Created folder: " << folder_name << std::endl;
}

// 删除最早的文件夹
void DeleteEarliestFolder() {
  fs::path folder_path("logs");
  std::time_t earliest_time = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
  fs::directory_iterator end_iter;
  for (fs::directory_iterator iter(folder_path); iter != end_iter; ++iter) {
    if (fs::is_directory(iter->status())) {
      std::string folder_name = iter->path().filename().string();
      std::tm tm{};
      std::stringstream ss(folder_name);
      ss >> std::get_time(&tm, "%Y-%m-%d-%H-%M");
      std::time_t folder_time = std::mktime(&tm);
      if (folder_time < earliest_time) {
        earliest_time = folder_time;
      }
    }
  }
  std::stringstream ss;
  ss << std::put_time(std::localtime(&earliest_time), "%Y-%m-%d-%H-%M");
  std::string folder_name = ss.str();
  fs::remove_all("logs/" + folder_name);
  std::cout << "Deleted folder: " << folder_name << std::endl;
}

// 获取文件夹大小
uint64_t GetFolderSize() {
  uint64_t size = 0;
  fs::path folder_path("logs");
  fs::directory_iterator end_iter;
  for (fs::directory_iterator iter(folder_path); iter != end_iter; ++iter) {
    if (fs::is_directory(iter->status())) {
      size += fs::file_size(iter->path());
    }
  }
  return size;
}

int main() {
  while (true) {
    CreateNewFolder();
    while (GetFolderSize() > kFolderSizeLimit) {
      DeleteEarliestFolder();
    }
    std::this_thread::sleep_for(std::chrono::minutes(10));
  }
  return 0;
}

这段代码实现了每隔 10 分钟创建一个格式为 `%Y-%m-%d-%H-%M` 的文件夹，并且在 logs 文件夹总容量超过 10G 时自动删除最早的文件夹。需要注意的是，这段代码需要编译器支持 C++17。