bool DeleteOldFiles(const char* strFolder, const char* strPrefix, bool is_recursion, UINT32 ulMinDateTime, UINT32 ulMaxDateTime)

{

    HANDLE hFind = NULL;

    WIN32_FIND_DATAA findFileData;

    std::string strFindFolder = strFolder;

    //转换成大写的进行比较

    std::string strUpperPrefix = str_toupper(std::string(strPrefix));

    std::string strUpperFileName(MAX_PATH, '\0');

    std::string strTempName(MAX_PATH, '\0');

    if (strFindFolder[strFindFolder.length() - ] == '\\') {

        strFindFolder.append("*.*");

    } else {

        strFindFolder.append("\\*.*");

    }

    hFind = FindFirstFileA(strFindFolder.c_str(), &findFileData);

    if (hFind == INVALID_HANDLE_VALUE)

    {

        return false;

    }

    do{

        if ((findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY) {

            if (is_recursion){

                if (( == strcmp(".", findFileData.cFileName)) || ( == strcmp("..", findFileData.cFileName)))

                {

                    continue;

                }

                sprintf_s(&strTempName[], MAX_PATH - , "%s\\%s", strFolder, findFileData.cFileName);

                DeleteOldFiles(strTempName.c_str(), strPrefix, is_recursion, ulMinDateTime, ulMaxDateTime);

            }

        } else {

            //判断文件名是否相同的前缀

            strUpperFileName = str_toupper(std::string(findFileData.cFileName));

            //有相同的前缀

            if (strcmp(strUpperFileName.c_str(), strUpperPrefix.c_str()) >= ) {

                //取当前指定位置的数值，转换成整数

                UINT32 ulCurrDateTime = atoi(&strUpperFileName[strUpperPrefix.length()]);

                if ((ulCurrDateTime >= ulMinDateTime) && (ulCurrDateTime <= ulMaxDateTime)) {

                    //组合文件名

                    sprintf_s(&strTempName[], MAX_PATH - , "%s\\%s", strFolder, findFileData.cFileName);

                    //删除文件

                    DeleteFileA(strTempName.c_str());

                }

            }

        }

    } while (FindNextFileA(hFind, &findFileData));

    ::FindClose(hFind);

    hFind = NULL;

    return true;

}