VC 遍历文件夹所有文件名，代码简短。下面函数是获取YY账号，（对xml的解析操作）

本文链接：https://blog.youkuaiyun.com/changshiyzj/article/details/83418391

该代码示例演示了如何使用VC++遍历指定路径下的文件夹，收集所有文件的完整路径，并从XML文件中提取uniqueid。程序首先通过标准库<filesystem>遍历文件，然后利用TinyXML库解析XML获取uniqueid。

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#include <filesystem>
#include <string>
#include <vector>
#include "tinyxml.h"
using namespace std;
using namespace std::tr2::sys;
string ReadData(const char* str);

BOOL DirectoryList();
int main()
{
   vector<string> fileLists;
   string path = "C:\\Users\\Administrator\\AppData\\Roaming\\duowan\\yy\\mainframe\\account\\";
   directory_iterator it(path);
   while (it != directory_iterator()){
       string tmp = it->path().string();
       string fullpath = path + tmp;
       fileLists.push_back(fullpath);

       ++it;
   }
   for (size_t i = 0;i < fileLists.size();i++)
   {
       string uniqueid = ReadData(fileLists[i].c_str());
       cout<<uniqueid<<endl;
   }
   getchar();
   return 0;
}
string ReadData(const char* str)
{
TiXmlDocument xdoc;
if (!xdoc.LoadFile(str)) {
return "LoadFile fail";
}
TiXmlElement* filexml = xdoc.RootElement();
if (filexml == NULL) {
   cout<<"RootElement fail"<<endl;
}
TiXmlElement* xname = filexml->FirstChildElement("name");
TiXmlElement* uniqueid = filexml->FirstChildElement("uniqueid");
std::string uni = uniqueid->GetText();
   return uni;
}
BOOL DirectoryList()
{
   LPCWSTR Path = L"C:\\Users\\Administrator\\AppData\\Roaming\\duowan\\yy\\mainframe\\account\\*.*";
   WIN32_FIND_DATA FindData;
   HANDLE hError;
   int FileCount = 0;

   hError = FindFirstFile(Path, &FindData);
   if (hError == INVALID_HANDLE_VALUE)
   {
       printf("搜索失败!");
       return FALSE;
   }
   BOOL filebool = TRUE;
   wchar_t FullPathName[MAX_PATH] = {0};
   while(hError && filebool)
   {
       if (wcscmp(FindData.cFileName, L".") == 0 || wcscmp(FindData.cFileName, L"..") == 0 )
       {
           filebool = ::FindNextFile(hError, &FindData);
           continue;
       }
       cout<<FindData.cFileName<<endl;
       wsprintf(FullPathName, L"%s\\%s", Path,*FindData.cFileName);
       FileCount++;
       cout<<FullPathName<<endl;
       filebool = ::FindNextFile(hError, &FindData);

       if (FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
       {
           //DirectoryList(FullPathName);
       }
   }
   FindClose(hError);
   cout<<FileCount<<endl;
   return TRUE;
}