QT两种方式调用命令行

//方式一
QStringList cmd;
cmd<<label_image_folder<<train_file<<class_file;//设置exe启动路径QDir::setCurrent(yolo_marker_folder);
p->startDetached("yolo_mark.exe",cmd);

//方式二,纯C++方式，需要各种转

QString label_cmd = "yolo_mark.exe " + label_image_folder + " " + train_file + " " + class_file;

QByteArray qByteArray = label_cmd.toUtf8();

char* cStr_cmd = qByteArray.data();

std::wstring yolo_marker_folder_new = yolo_marker_folder.toStdWString();

LPCWSTR yolo_marker_folder_new2 = yolo_marker_folder_new.c_str();

SetCurrentDirectory(yolo_marker_folder_new2);

system(cStr_cmd);