01-PyQt5-初体验.py

import sys

from PyQt5.Qt import *

app = QApplication(sys.argv)

window = QWidget()
window.setWindowTitle("第一个PyQt程序")
window.resize(500, 500)
window.move(400, 250)

label = QLabel(window)
label.setText("Hello world")
label.move(200, 240)

window.show()

sys.exit(app.exec_())