PyQT5菜单栏点击按钮的颜色切换实现（小白看）_qt designer 点击按钮会变色 python

rt,PyQT5,菜单栏的PushButton设置成点击某一个按钮后变色，点击其他的按钮，其它按钮变色，这个按钮恢复正常

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QButtonGroup, QVBoxLayout, QWidget
 
class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.central_widget = QWidget()
        self.setCentralWidget(self.central_widget)
        self.button_group = QButtonGroup()
        layout = QVBoxLayout(self.central_widget)
        # 创建按钮并添加到布局和按钮组中
        self.button1 = QPushButton("Button 1", self.central_widget)
        layout.addWidget(self.button1)
        self.button_group.addButton(self.button1)
        self.button2 = QPushButton("Button 2", self.central_widget)
        layout.addWidget(self.button2)
        self.button_group.addButton(self.button2)
        self.button3 = QPushButton("Button 3", self.central_widget)
        layout.addWidget(self.button3)
        self.button_group.addButton(self.button3)
        # 连接按钮的clicked信号到槽函数
        self.button_group.buttonClicked.connect(self.handle_button_clicked)
 
    def handle_button_clicked(self, button):
        # 将所有按钮设置为非选中状态
        for btn in self.button_group.buttons():
            btn.setStyleSheet("")  # 清除样式表
        # 设置当前按钮为选中状态
        button.setStyleSheet("background-color: yellow;")  # 设置按钮背景颜色为黄色
 
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())

思路就是清除其它按钮的样式表，设置点击按钮的样式表。

效果如下：