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import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *class ClipBoardDemo(QWidget):    def __init__(self):        super(ClipBoardDemo, self).__init__()        copybtn = QPushButton('复制文本')        pastebtn = QPushButton('粘贴文本')        imgecbtn = QPushButton('复制图像')        imagepbtn =QPushButton('粘贴图像')        self.textLabel =QLabel('默认文本')        self.image =QLabel()        self.image.setPixmap(QPixmap('./python.jpg'))        layout = QGridLayout()        layout.addWidget(copybtn,0,0)        layout.addWidget(pastebtn,0,1)        layout.addWidget(imgecbtn,1,0)        layout.addWidget(imagepbtn,1,1)        layout.addWidget(self.textLabel,2,0,1,2)        layout.addWidget(self.image,3,0,1,2)        self.setLayout(layout)        #绑定事件        copybtn.clicked.connect(self.copytext)        pastebtn.clicked.connect(self.pastetext)        imgecbtn.clicked.connect(self.imagecopy)        imagepbtn.clicked.connect(self.imagepaste)    def copytext(self):        #获得剪贴板        clipboard = QApplication.clipboard()        clipboard.setText('Hello World!')    def pastetext(self):        clipboard =QApplication.clipboard()        self.textLabel.setText(clipboard.text())    def imagecopy(self):        clipboard = QApplication.clipboard()        clipboard.setPixmap(QPixmap('./timg.jpg'))    def imagepaste(self):        clipboard = QApplication.clipboard()        self.image.setPixmap(clipboard.pixmap())if __name__ == '__main__':    app =QApplication(sys.argv)    main = ClipBoardDemo()    main.show()    app.exit(app.exec_())

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