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PyQt5之QPrinter打印

import sysfrom PyQt5 import QtCorefrom PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *from PyQt5.QtPrintSupport import QPageSetupDialog,QPrintDialog,QPrinterclass Win(QMainWindow):    def __init__(self):        super().__init__()        self.setGeometry(300, 300,500, 400)        self.setWindowTitle('QPrinter的使用')        self.printer = QPrinter()        self.editor = QTextEdit(self)        self.editor.setGeometry(20,20,300,270)        self.openButton = QPushButton('打开文件',self)        self.openButton.move(350,20)        self.settingsButton = QPushButton('打印设置',self)        self.settingsButton.move(350,50)        self.printButton = QPushButton('打印文档',self)        self.printButton.move(350,80)        self.openButton.clicked.connect(self.openFile)        self.settingsButton.clicked.connect(self.showSettingsDialog)        self.printButton.clicked.connect(self.showPrintDialog)        	#打开文件    def openFile(self):        frame = QFileDialog.getOpenFileName(self,'打开文本文件','./')        if frame[0]:            with open(frame[0],'r',encoding='utf-8',errors='ignore') as f:                self.editor.setText(f.read())                	#显示打印设置对话框    def showSettingsDialog(self):        printDialog = QPageSetupDialog(self.printer,self)        printDialog.exec()	#显示打印文档对话框    def showPrintDialog(self):        printDialog = QPrintDialog(self.printer,self)        if(QDialog.Accepted == printDialog.exec_()):            self.editor.print(self.printer)if __name__ == "__main__":    app = QApplication(sys.argv)    form = Win()    form.show()    sys.exit(app.exec_())

运行效果如下：

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