1. windows文件目录遍历
#include <string>
#include <Windows.h>
#include <io.h>
#include <vector>
using namespace std;
void getFiles(const std::string& dir, std::vector<string>& files, const std::string filter_type="*.*")
{
//文件句柄
intptr_t hFile = 0;
//文件信息
struct _finddata_t fileinfo;
std::string path = dir + "\\" + filter_type;
//string p = "F:\\TY_code\\sqliteR8\\TySrvDevelop\\bin\\TY-CM-2116A2-V1\\snap\\*.jpg";
if ((hFile = _findfirst(path.c_str(), &fileinfo)) != -1)
{
do
{
//如果是目录,迭代之
//如果不是,加入列表
if ((fileinfo.attrib & _A_SUBDIR))
{
if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0)
getFiles(fileinfo.name, files);
}
else
{
string dir = path.substr(0, path.find_last_of("\\")+1);
files.push_back(dir + fileinfo.name);
}
} while (_findnext(hFile, &fileinfo) == 0);
_findclose(hFile);
}
}
2. Linux文件目录遍历
#include <dirent.h>
#include <string.h>
#include <iostream>
#include <vector>
#include <string>
namespace {
void Usage(const char* exe)
{
fprintf(stderr, "input params error, run this exe as following command line:\n");
fprintf(stderr, "\t%s arg1 arg2 arg3\n", exe);
fprintf(stderr, "\targ1: specify the directory to traverse\n");
fprintf(stderr, "\targ2: type:\n"
"\t\t0: tarverse all files and all directories in directory;\n"
"\t\t1: only tarverse all files, don't include directories in directory;\n"
"\t\t2: only tarverse all directories, don't include files in directory.\n");
fprintf(stderr, "\targ3: optional, filter, default is *, which is don't filter. \n");
fprintf(stderr, "for example(support relative path), only traverse jpg image:\n");
fprintf(stderr, "\t%s ./images 0 .jpg\n", exe);
fprintf(stderr, "##### test fail #####\n");
}
// 遍历指定文件夹下的所有文件，不包括指定文件夹内的文件夹
std::vector<std::string> GetListFiles(const std::string& path, const std::string& exten = "*")
{
std::vector<std::string> list;
list.clear();
DIR* dp = nullptr;
struct dirent* dirp = nullptr;
if ((dp = opendir(path.c_str())) == nullptr) {
return list;
}
while ((dirp = readdir(dp)) != nullptr) {
if (dirp->d_type == DT_REG) {
if (exten.compare("*") == 0)
list.emplace_back(static_cast<std::string>(dirp->d_name));
else
if (std::string(dirp->d_name).find(exten) != std::string::npos)
list.emplace_back(static_cast<std::string>(dirp->d_name));
}
}
closedir(dp);
return list;
}
// 遍历指定文件夹下的所有文件夹，不包括指定文件夹下的文件
std::vector<std::string> GetListFolders(const std::string& path, const std::string& exten = "*")
{
std::vector<std::string> list;
list.clear();
DIR* dp = nullptr;
struct dirent* dirp = nullptr;
if ((dp = opendir(path.c_str())) == nullptr) {
return list;
}
while ((dirp = readdir(dp)) != nullptr) {
if (dirp->d_type == DT_DIR && strcmp(dirp->d_name, ".") != 0 && strcmp(dirp->d_name, "..") != 0) {
if (exten.compare("*") == 0)
list.emplace_back(static_cast<std::string>(dirp->d_name));
else
if (std::string(dirp->d_name).find(exten) != std::string::npos)
list.emplace_back(static_cast<std::string>(dirp->d_name));
}
}
closedir(dp);
return list;
}
// 遍历指定文件夹下的所有文件，包括指定文件夹内的文件夹
std::vector<std::string> GetListFilesR(const std::string& path, const std::string& exten = "*")
{
std::vector<std::string> list = GetListFiles(path, exten);
std::vector<std::string> dirs = GetListFolders(path, exten);
for (auto it = dirs.cbegin(); it != dirs.cend(); ++it) {
std::vector<std::string> cl = GetListFiles(*it, exten);
for (auto file : cl) {
list.emplace_back(*it + "/" + file);
}
}
return list;
}
} // namespace
int main(int argc, char* argv[])
{
if (argc < 3 || argc > 4) {
Usage(argv[0]);
return -1;
}
int type = atoi(argv[2]);
std::string exten = "*";
if (argc == 4) exten = std::string(argv[3]);
std::vector<std::string> vec;
if (type == 0) vec = GetListFilesR(std::string(argv[1]), exten);
else if (type == 1) vec = GetListFiles(std::string(argv[1]), exten);
else if (type == 2) vec = GetListFolders(std::string(argv[1]), exten);
else {
Usage(argv[0]); return -1;}
fprintf(stdout, "traverse result: files count: %d\n", vec.size());
for (auto& file : vec) {
fprintf(stderr, "\t%s\n", file.c_str());
}
fprintf(stdout, "===== test success =====\n");
}
参考：
https://blog.csdn.net/fengbingchun/article/details/80154708