windows 计算目录大小

void DirectoryInfo::CalculateSize(std::string _path) 

{ WIN32_FIND_DATAA data; 

HANDLE sh = NULL; 

sh = FindFirstFileA((_path+"\\*").c_str(), &data);

 if (sh == INVALID_HANDLE_VALUE ) 

{ return; } 

do { // skip current and parent if (std::string(data.cFileName).compare(".") != 0 && std::string(data.cFileName).compare("..") != 0) { // if found object is ... if ((data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY) { // directory,
then search it recursievly this->CalculateSize(_path+"\\"+data.cFileName); } else { // otherwise get object size and add it to directory size this->dirSize += (__int64) (data.nFileSizeHigh * (MAXDWORD ) + data.nFileSizeLow); } } } 

while (FindNextFileA(sh, &data)); // do FindClose(sh); }