程式碼如下

import sys
from PyQt5.QtWidgets import QApplication, QWidget


class Example(QWidget):

    def __init__(self):
        super().__init__()

        self.initUI()  # 介面繪製交給InitUi方法

    def initUI(self):

        self.desktop = QApplication.desktop()

        #獲取顯示器解析度大小
        self.screenRect = self.desktop.screenGeometry()
        self.height = self.screenRect.height()
        self.width = self.screenRect.width()

        print(self.height)
        print(self.width)

        # 顯示視窗
        self.show()


if __name__ == '__main__':
    # 建立應用程式和物件
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())