PyQt5剪切板操作

1、使用剪切板
import sys,math
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
class Clipboard(QDialog):
    def __init__(self):
        super(Clipboard,self).__init__()

        #定义六个复制粘贴按钮，用来实现复制粘贴文本，图像和HTML网页
        textcopybutton=QPushButton("复制文本")
        textpastebutton=QPushButton("粘贴文本")

        imagecopybutton = QPushButton("复制图像")
        imagepastebutton = QPushButton("粘贴图像")

        htmlcopybutton = QPushButton("复制HTML网页")
        htmlpastebutton = QPushButton("粘贴HTML网页")

        self.textlabel=QLabel("默认字体")  #显示粘贴的文本label
        self.imagelabel=QLabel()      #显示图像的label
        self.imagelabel.setPixmap(QPixmap("./image-1/1-1.jpg"))

        #定义网格栅格布局
        layout=QGridLayout()
        layout.addWidget(textcopybutton,0,0)
        layout.addWidget(imagecopybutton,0,1)
        layout.addWidget(htmlcopybutton,0,2)
        layout.addWidget(textpastebutton,1,0)
        layout.addWidget(imagepastebutton,1,1)
        layout.addWidget(htmlpastebutton,1,2)

        layout.addWidget(self.textlabel,2,0,1,2)
        layout.addWidget(self.imagelabel,2,2)
        self.setLayout(layout)

        #定义按钮触发事件
        textcopybutton.clicked.connect(self.copytext)
        textpastebutton.clicked.connect(self.pastetext)
        htmlcopybutton.clicked.connect(self.copyhtml)
        htmlpastebutton.clicked.connect(self.pastehtml)
        imagecopybutton.clicked.connect(self.copyimage)
        imagepastebutton.clicked.connect(self.pasteimage)
        self.setWindowTitle("剪切板")

    def copytext(self):
        clipboard=QApplication.clipboard()
        clipboard.setText("hello world")
    def pastetext(self):
        clipboard = QApplication.clipboard()
        self.textlabel.setText(clipboard.text())

    def copyimage(self):
        clipboard = QApplication.clipboard()
        clipboard.setPixmap(QPixmap("./image-1/1-1.jpg"))

    def pasteimage(self):
        clipboard = QApplication.clipboard()
        self.iamgelabel.setPixmap(clipboard.pixmap())

    def copyhtml(self):
        mimedata=QMimeData()
        mimedata.setHtml('<b>Bold and <font color=red>Red</font></b>')
        clipboard = QApplication.clipboard()
        clipboard.setMimeData(mimedata)

    def pastehtml(self):
        clipboard = QApplication.clipboard()
        mimedata=clipboard.mimeData()
        if mimedata.hasHtml():
            self.textlabel.setText(mimedata.html())

if __name__=="__main__":
    app=QApplication(sys.argv)
    p=Clipboard()
    p.show()
    sys.exit(app.exec_())