22. PyQt6 QCheckBox
2023-10-17 python 319
import sys from PyQt6.QtWidgets import QApplication, QMainWindow, QCheckBox from PyQt6.QtGui import QGuiApplication from PyQt6.QtCore import Qt class App(QMainWindow): def __init__(self): super().__init__() self.initUI() def initUI(self): self.setWindowTitle("PyQt6 QCheckBox") cb = QCheckBox("显示标题", self) cb.move(20, 20) cb.toggle() cb.stateChanged.connect(self.changeTitle) self.setGeometry(100, 100, 400, 300) self.center() def changeTitle(self, state): if state == Qt.CheckState.Checked.value: self.setWindowTitle("PyQt6 QCheckBox") else: self.setWindowTitle(" ") def center(self): qr = self.frameGeometry() cp = QGuiApplication.primaryScreen().availableGeometry().center() qr.moveCenter(cp) self.move(qr.topLeft()) if __name__ == "__main__": app = QApplication(sys.argv) cls_app = App() cls_app.show() sys.exit(app.exec())
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