效果预览

实际效果中带有白色面板，看如下代码

实现代码

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QFrame, QLabel, QSizePolicy
from PyQt5.QtCore import QPropertyAnimation, QEasingCurve, Qtclass CollapsiblePanel(QWidget):def __init__(self, title, content, parent=None):super(CollapsiblePanel, self).__init__(parent)self.toggle_button = QPushButton(title)self.toggle_button.setCheckable(True)self.toggle_button.setChecked(False)self.toggle_button.setFixedSize