#include "mainwindow.h" #include int main(int argc, char *argv[]) { QApplication a(argc, argv); //MainWindow w; MainWindow t; t.show(); int c=a.exec(); //qDebug()<<"close"; t.serial->disconnect(); t.serial->close(); //QThread::currentThread()->usleep(1); //QThread::currentThread()->msleep(10); return c; }