如何每隔60秒更新一次PyQt5图标？

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel
from PyQt5.QtCore import QTimer

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("PyQt5 Icon Update Example")
        
        self.label = QLabel(self)
        self.label.setPixmap(QPixmap("icon.png"))  # 设置初始图标
        
        self.timer = QTimer(self)
        self.timer.timeout.connect(self.updateIcon)  # 每隔60秒触发updateIcon函数
        self.timer.start(60000)
        
    def updateIcon(self):
        # 更新图标
        self.label.setPixmap(QPixmap("new_icon.png"))
        
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())