PyQt5调用主窗口

import sysfrom ui.MainWindow import Ui_Form
from PyQt5.QtWidgets import QApplication, QMainWindowclass MyMainWindow(QMainWindow, Ui_Form):
    def __init__(self):
        super(MyMainWindow, self).__init__()
        self.setupUi(self)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    mainWindow = MyMainWindow()
    mainWindow.show()
    sys.exit(app.exec_())