PyQt创建自定义PushButton /继承自带参数的类

from PyQt5.QtWidgets import QApplication, QPushButton

class CustomButton(QPushButton):
    def __init__(self, text, parent=None):
        super().__init__(text, parent)
        self.additional_param = None

    def set_additional_param(self, param):
        self.additional_param = param

    def get_additional_param(self):
        return self.additional_param

# 创建应用程序对象
app = QApplication([])

# 创建自定义按钮对象
button = CustomButton("Click me")

# 设置额外参数
button.set_additional_param("Custom parameter")

# 获取额外参数
param = button.get_additional_param()
print(param)  # 输出：Custom parameter

# 运行应用程序
app.exec_()