python - 如何在 PyQt5 中更改 QButtonGroup 的颜色属性？

Question

我想在 PyQt5 中更改按钮组对象的按钮颜色。我试过了

QButtonGroup.setStyleSheet("""
                              QButtonGroup 
                                { 
                                        background-color: rgb(255, 255,255);  
                                }
                                """
                                )

但是没有这个功能。如果有人可以提供帮助(使用 Python 或 C++)，我将不胜感激

Answer 1

根据 Qt doc :

QButtonGroup provides an abstract container into which button widgets can be placed. It does not provide a visual representation of this container (see QGroupBox for a container widget), but instead manages the states of each of the buttons in the group.

因此，您不能为其设置样式表。也许你想要一个 QGroupBox？这是一个例子:

import sys
import PyQt5.QtWidgets as QtWidgets

def window():
    app = QtWidgets.QApplication(sys.argv)
    w = QtWidgets.QWidget()
    w.setWindowTitle('Hello')
    w.setGeometry(100,100,200,100)
    g = QtWidgets.QGroupBox(w)
    layout = QtWidgets.QVBoxLayout()
    b = QtWidgets.QPushButton(w)
    b.setText("Hello World!")
    b1 = QtWidgets.QPushButton(w)
    b1.setText("Hello SO!")
    layout.addWidget(b)
    layout.addWidget(b1)
    g.setLayout(layout)
    w.setStyleSheet("""
        QGroupBox { background-color: rgb(255, 255,255);
        } """)
    w.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    window()