PyQt5中QPropertyAnimation的应用

# -*- coding: utf-8 -*- from PyQt5.Qt import * import sys import time import numpy as np class BallCartoon(QMainWindow): n = 0 flag = 0 ani_w = None def __init__(self): super(BallCartoon, self).__init__() self.init_ui() def init_ui(self): self.resize(1000,