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__()

        #定義六個復制粘貼按鈕，用來實現復制粘貼文本，圖像和HTML網頁
        textcopybutton=QPushButton("復制文本")
        textpastebutton=QPushButton("粘貼文本")

        imagecopybutton = QPushButton("復制圖像")
        imagepastebutton = QPushButton("粘貼圖像")

        htmlcopybutton = QPushButton("復制HTML網頁")
        htmlpastebutton = QPushButton("粘貼HTML網頁")

        self.textlabel=QLabel("默認字體")  #顯示粘貼的文本label
        self.imagelabel=QLabel()      #顯示圖像的label
        self.imagelabel.setPixmap(QPixmap("./image-1/1-1.jpg"))

        #定義網格柵格布局
        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)

        #定義按鈕觸發事件
        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_())