如何使用鼠标单击选择多个QLabel对象？

from PyQt5.QtWidgets import QApplication, QLabel, QWidget
from PyQt5.QtCore import Qt

class MyWidget(QWidget):
    def __init__(self):
        super().__init__()
        self.labels = []  # 用于存储选择的QLabel对象

        self.initUI()

    def initUI(self):
        # 创建一些QLabel对象并设置其位置和大小
        label1 = QLabel(self)
        label1.setGeometry(10, 10, 100, 30)
        label1.setText("Label 1")

        label2 = QLabel(self)
        label2.setGeometry(10, 50, 100, 30)
        label2.setText("Label 2")

        label3 = QLabel(self)
        label3.setGeometry(10, 90, 100, 30)
        label3.setText("Label 3")

    def mousePressEvent(self, event):
        if event.buttons() == Qt.LeftButton:
            pos = event.pos()
            for label in self.findChildren(QLabel):
                if label.geometry().contains(pos):
                    self.labels.append(label)

    def mouseReleaseEvent(self, event):
        if event.button() == Qt.LeftButton:
            # 在这里可以对选中的QLabel对象进行操作
            for label in self.labels:
                print(label.text())

            self.labels.clear()

if __name__ == '__main__':
    app = QApplication([])
    widget = MyWidget()
    widget.show()
    app.exec_()