在QLabel中显示图像

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QLabel
from PyQt5.QtGui import QPixmap

class ImageDisplay(QWidget):
    def __init__(self):
        super().__init__()

        self.initUI()

    def initUI(self):
        self.setWindowTitle('Image Display')
        self.setGeometry(300, 300, 250, 150)

        layout = QVBoxLayout()

        pixmap = QPixmap('image.jpg')
        label = QLabel()
        label.setPixmap(pixmap)

        layout.addWidget(label)

        self.setLayout(layout)

    def run(self):
        self.show()

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