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                # `QCheckBox` > 原文: [https://pythonbasics.org/qcheckbox/](https://pythonbasics.org/qcheckbox/) 復選框(`QCheckbox`)是默認的 QT 小部件,可以使用方法`setChecked(true)`進行檢查。 它是`PyQt5.QtWidgets`的一部分。 您可以使用`.toggled.connect()`添加點擊回調/信號。 然后,接收槽可以處理事件。 ![pyqt checkox](https://img.kancloud.cn/49/c1/49c1c73148eea8e1c202d46f7cb3ad77_334x244.jpg) ## `QCheckBox` ### PyQt 復選框示例 下面的示例在 PyQt 窗口中創建一個復選框。 如果單擊復選框,它將調用方法`onClicked()`。 方法`.isChecked()`可用于獲取復選框狀態。 ```py from PyQt5.QtWidgets import * import sys class Window(QWidget): def __init__(self): QWidget.__init__(self) layout = QGridLayout() self.setLayout(layout) radiobutton = QCheckBox("I have a Cat") radiobutton.setChecked(True) radiobutton.animal = "Cat" radiobutton.toggled.connect(self.onClicked) layout.addWidget(radiobutton, 0, 0) def onClicked(self): radioButton = self.sender() print("Animal " + (radioButton.animal) + " is " + str(radioButton.isChecked())) app = QApplication(sys.argv) screen = Window() screen.show() sys.exit(app.exec_()) ``` [下載示例](https://gum.co/pysqtsamples)
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