C++中如何深度搜索遍历文件夹

深度优先搜索遍历文件夹所有文件, 由于利用windows的函数, 必需要利用C语言;

留意字符集的问题,利用"#undef UNICODE", 屏蔽因字符集所发生的问题;

利用vector<string>存储所有文件名, 因为要递归利用, 所以需要配置为静态,返回shared_ptr的指针

代码如下:

/************************************************* 
File: main.cpp 
Copyright: C.L.Wang 
Author: Caroline 
Date: 2013-11-27 
Description: 深度优先递归遍历目次中所有的文件 
Email: [email protected] 
**************************************************/
      
#undef UNICODE  
      
#include <iostream>  
#include <string>  
#include <vector>  
#include <memory>  
#include <cstring>  
      
#include <windows.h>  
      
std::shared_ptr<std::vector<std::string> >  
fileList(const std::string& folder_path)  
{  
    static std::shared_ptr<std::vector<std::string> >   
        folder_files(new std::vector<std::string>); //返回指针, 需要迭代利用  
      
    WIN32_FIND_DATA FindData;  
    HANDLE hError;  
      
    int file_count(0);  
    std::string file_path(folder_path); //路径名  
    std::string full_file_path; //全路径名   
      
    file_path.append("/*.*");  
    hError = FindFirstFile(file_path.c_str(), &FindData);  
    if (hError == INVALID_HANDLE_VALUE) {  
        std::cout << "failed to search files." << std::endl;  
        return nullptr;  
    }  
    while(FindNextFile(hError, &FindData))  
    {  
        //过虑".", "..", "-q"  
        if(0 == strcmp(FindData.cFileName, ".") ||   
            0 == strcmp(FindData.cFileName, "..") ||   
            0 == strcmp(FindData.cFileName, "-q"))  
        {  
            continue;  
        }  
      
        //完整路径  
        full_file_path.append(folder_path);  
        full_file_path.append("/");  
        full_file_path.append(FindData.cFileName);  
        ++file_count;  
      
        if (FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY){  
            //std::cout << file_count << " " << full_file_path << "<Dir>" << std::endl;  
            fileList(full_file_path);  
        }else{  
            folder_files->push_back(full_file_path);  
            //std::cout << file_count << " " << full_file_path << std::endl;  
        }  
        full_file_path.clear(); //清空目次  
    }  
    return folder_files;  
}  
      
int main(void)   
{  
    std::shared_ptr<std::vector<std::string> > folder_files;  
    folder_files = fileList("E:/Picture/shoes3");  
    if (folder_files) {  
        for (size_t i=0; i != folder_files->size(); ++i) {  
            std::cout << i+1 << " : " << (*folder_files)[i] << std::endl;  
        }  
    }  
    return 0;  
}

作者：csdn博客 Spike_King