pyqt5 工具栏文字图片同时显示

import sys
from PyQt5.QtWidgets import QMainWindow, QTextEdit, QAction, QApplication
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import Qt

class Example(QMainWindow):

    def __init__(self):
        super().__init__()
        self.initUI()
    def initUI(self):
        textEdit = QTextEdit()
        self.setCentralWidget(textEdit)

        exitAction = QAction(QIcon('images/exit.png'), 'Exit',self)
        exitAction.setShortcut('Ctrl+Q')
        exitAction.setStatusTip('Exit application')
        exitAction.triggered.connect(self.close)

        self.statusBar()

        menubar = self.menuBar()
        fileMenu = menubar.addMenu('&File')
        fileMenu.addAction(exitAction)

        toolbar = self.addToolBar('Exit')
        # toolbar.setToolButtonStyle(Qt.ToolButtonTextUnderIcon) # 文字图片垂直排列
        toolbar.setToolButtonStyle(Qt.ToolButtonTextBesideIcon)  # 文字图片水平排列
        toolbar.addAction(exitAction)

        self.setGeometry(300, 300, 350, 250)
        self.setWindowTitle('Main window')

        self.show()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())