# -*- coding: utf-8 -*- ''' (4)Python调用QML函数 QML中创建一个函数, Python中创建一个rootObject对象,并连接这个函数, 例子中,每隔1s,指针会旋转45 deg;。 ''' from PyQt5.QtCore import QUrl, QTimer from PyQt5.QtGui import QGuiApplication from PyQt5.QtQuick import QQuickView if __name__ == '__main__': path = 'test4.qml' # 加载的QML文件 app = QGuiApplication([]) view = QQuickView() view.engine().quit.connect(app.quit) view.setSource(QUrl(path)) view.show() timer = QTimer() timer.start(2000) root = view.rootObject() timer.timeout.connect(root.updateRotater) # 调用QML函数 app.exec_()