QT 每天创建一个文件夹用来保存当天生成的csv文件

//创建文件夹以及文件
void MainWindow::NewFile()
{
QDateTime datetime = QDateTime::currentDateTime();
QString timestrFolder = datetime.toString(“yyyy-MM-dd”);
QString timestrFile = datetime.toString(“yyyy-MM-dd_hh-mm-ss”);
QString dir_str = “…/csv/” + timestrFolder;
// 检查目录是否存在，若不存在则新建
QDir dir;
if (!dir.exists(dir_str))
{
bool res = dir.mkpath(dir_str);
qDebug() << “新建目录是否成功” << res;
}
//获取创建的csv文件名
QString fileName = dir_str + “/” + timestrFile + “.csv”;
if (fileName.isEmpty())
{
return;
}
//打开.csv文件
QFile file(fileName);
if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
{
std::cerr << “Cannot open file for writing: "
<< qPrintable(file.errorString()) << std::endl;
return;
}
QTextStream out(&file);
out << “Prostr” <<”," <<“WorkpieceStr” << “,” << “StandardValue “<< “,” <<” ResultStr”<< “,” << “ToletranceUp” << “,” << “ToletranceDown” << “,” << “NG_OK_Str”<< “\n”;//输入的内容
file.close();
}