将qt的ui界面转为py，并运行成窗口

import sys

from PyQt5.QtWidgets import QApplication, QMainWindow

if __name__ == '__main__':

  app = QApplication(sys.argv)

  MainWindow = QMainWindow()

  ui = Ui_Form()

  ui.setupUi(MainWindow)

  MainWindow.show()

  sys.exit(app.exec_())