PyQt: 获取电脑屏幕桌面的宽、高尺寸

import sys
from PyQt5.Qt import *


class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.setup_ui()

    def setup_ui(self):
        self.setWindowTitle("Qt桌面应用程序")
        self.resize(300, 300)

        desktop_widget = QApplication.desktop()

        self.label = QLabel(self)
        self.label.setText(f"屏幕宽:{str(desktop_widget.width())} 屏幕高:{str(desktop_widget.height())}")


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