详解C/C++如何获取路径下所有文件及其子目录的文件名

  DIR* dp;
  struct dirent* dirp;
  if ((dp = opendir(sdir.c_str())) != NULL) {
      dirp = readdir(dp)
  }

enum
  {
    DT_UNKNOWN = 0,
# define DT_UNKNOWN    DT_UNKNOWN
    DT_FIFO = 1,
# define DT_FIFO    DT_FIFO
    DT_CHR = 2,
# define DT_CHR        DT_CHR
    DT_DIR = 4,
# define DT_DIR        DT_DIR
    DT_BLK = 6,
# define DT_BLK        DT_BLK
    DT_REG = 8,
# define DT_REG        DT_REG
    DT_LNK = 10,
# define DT_LNK        DT_LNK
    DT_SOCK = 12,
# define DT_SOCK    DT_SOCK
    DT_WHT = 14
# define DT_WHT        DT_WHT
  };

#include <dirent.h>
#include <vector>

std::vector<std::string> GetFiles(const std::string& sdir = ".",
                                  bool bsubdir = true) {
  DIR* dp;
  struct dirent* dirp;
  std::vector<std::string> filenames;
  if ((dp = opendir(sdir.c_str())) != NULL) {
    while ((dirp = readdir(dp)) != NULL) {
      if (strcmp(".", dirp->d_name) == 0 || strcmp("..", dirp->d_name) == 0)
        continue;
      if (dirp->d_type != DT_DIR)
        filenames.push_back(sdir + "/" + dirp->d_name);
      if (bsubdir && dirp->d_type == DT_DIR) {
        std::vector<std::string> names = GetFiles(sdir + "/" + dirp->d_name);
        filenames.insert(filenames.begin(), names.begin(), names.end());
      }
    }
  }
  closedir(dp);
  return filenames;
}