if __name__ == '__main__':
# 创建实例
app = QApplication(sys.argv)
w = QWidget()
w.resize(300, 150)
w.move(300, 300)
w.setWindowTitle("这是第一个桌面应用")
w.show()
sys.exit(app.exec_())
python -m PyQt5.uic.pyuic demo.ui -o demo.py
-m PyQt5.uic.pyuic -o .py
import sys
from PyQt5.QtWidgets import QApplication, QWidget,QMainWindow
import hello
if __name__ == '__main__':
# 创建实例
app = QApplication(sys.argv)
mainWindow=QMainWindow()
ui=hello.Ui_MainWindow()
ui.setupUi(mainWindow)
mainWindow.show()
sys.exit(app.exec_())