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() - 1] == ‘\\‘) {
        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 ((0 == strcmp(".", findFileData.cFileName)) || (0 == strcmp("..", findFileData.cFileName)))
                {
                    continue;
                }

                sprintf_s(&strTempName[0], MAX_PATH - 1, "%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()) >=0 ) {
                //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[0], MAX_PATH - 1, "%s\\%s", strFolder, findFileData.cFileName);
                    //删除文件
                    DeleteFileA(strTempName.c_str());
                }
            }
        }
    } while (FindNextFileA(hFind, &findFileData));
    ::FindClose(hFind);
    hFind = NULL;

    return true;
}