C++ string 与 int拼接

参考
用处：在做BP的文件名拼接时用到了

//-------------------------------------------------------// StringPlusInt()// 若训练trainMnistCnts次，则保存trainMnistCnts次训练模型，则有10个txt// 此处为txt文件名的拼接，如trainedModel-1//-------------------------------------------------------string CBP::StringPlusInt(string path_TrainedModel_OriginalName, int trainMnistCnts){    string plusedPath = "";    ostringstream oss;    oss << path_TrainedModel_OriginalName << "-" << trainMnistCnts;    plusedPath += oss.str();    return plusedPath;}