PYQT5实现控制台显示功能的方法

2019-11-25 12:39:06

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界面文件 Ui_ControlBoard.py

# -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'Ui_ControlBoard.ui'## Created by: PyQt5 UI code generator 5.11.3## WARNING! All changes made in this file will be lost! from PyQt5 import QtCore, QtWidgets class Ui_MainWindow(object):  def setupUi(self, MainWindow):    MainWindow.setObjectName("MainWindow")    MainWindow.resize(800, 600)    self.centralwidget = QtWidgets.QWidget(MainWindow)    self.centralwidget.setObjectName("centralwidget")    self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)    self.textBrowser.setGeometry(QtCore.QRect(50, 180, 591, 171))    self.textBrowser.setObjectName("textBrowser")    self.pushButton = QtWidgets.QPushButton(self.centralwidget)    self.pushButton.setGeometry(QtCore.QRect(450, 390, 93, 28))    self.pushButton.setObjectName("pushButton")    MainWindow.setCentralWidget(self.centralwidget)    self.menubar = QtWidgets.QMenuBar(MainWindow)    self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))    self.menubar.setObjectName("menubar")    MainWindow.setMenuBar(self.menubar)    self.statusbar = QtWidgets.QStatusBar(MainWindow)    self.statusbar.setObjectName("statusbar")    MainWindow.setStatusBar(self.statusbar)     self.retranslateUi(MainWindow)    QtCore.QMetaObject.connectSlotsByName(MainWindow)   def retranslateUi(self, MainWindow):    _translate = QtCore.QCoreApplication.translate    MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))    self.pushButton.setText(_translate("MainWindow", "PushButton"))

逻辑文件 Call_ControlBoard.py

版本一

#!/usr/bin/env python3# -*- coding:utf-8 -*- from PyQt5 import QtCore, QtGuiimport sysfrom PyQt5.QtCore import QEventLoop, QTimerfrom PyQt5.QtWidgets import QApplication, QMainWindow from Ui_ControlBoard import Ui_MainWindow class EmittingStr(QtCore.QObject):    textWritten = QtCore.pyqtSignal(str) #定义一个发送str的信号    def write(self, text):      self.textWritten.emit(str(text))  class ControlBoard(QMainWindow, Ui_MainWindow):  def __init__(self):    super(ControlBoard, self).__init__()    self.setupUi(self)    # 下面将输出重定向到textBrowser中    sys.stdout = EmittingStr(textWritten=self.outputWritten)    sys.stderr = EmittingStr(textWritten=self.outputWritten)      self.pushButton.clicked.connect(self.bClicked)   def outputWritten(self, text):    cursor = self.textBrowser.textCursor()    cursor.movePosition(QtGui.QTextCursor.End)    cursor.insertText(text)    self.textBrowser.setTextCursor(cursor)    self.textBrowser.ensureCursorVisible()   def bClicked(self):    """Runs the main function."""    print('Begin')    loop = QEventLoop()    QTimer.singleShot(1000, loop.quit)    loop.exec_()    self.printABCD()    loop = QEventLoop()    QTimer.singleShot(1000, loop.quit)    loop.exec_()    print("End")   def printABCD(self):    print("aaaaaaaaaaaaaaaa")    print("bbbbbbbbbbbbbbbb")    print("cccccccccccccccc")    print("dddddddddddddddd")    if __name__ == "__main__":  app = QApplication(sys.argv)  win = ControlBoard()  win.show()  sys.exit(app.exec_())

版本二

#!/usr/bin/env python3# -*- coding:utf-8 -*- from PyQt5 import QtCore, QtGuiimport sysfrom PyQt5.QtCore import QEventLoop, QTimerfrom PyQt5.QtWidgets import QApplication, QMainWindow from Ui_ControlBoard import Ui_MainWindow class EmittingStr(QtCore.QObject):    textWritten = QtCore.pyqtSignal(str) #定义一个发送str的信号    def write(self, text):      self.textWritten.emit(str(text))      loop = QEventLoop()      QTimer.singleShot(1000, loop.quit)      loop.exec_()  class ControlBoard(QMainWindow, Ui_MainWindow):  def __init__(self):    super(ControlBoard, self).__init__()    self.setupUi(self)    # 下面将输出重定向到textBrowser中    sys.stdout = EmittingStr(textWritten=self.outputWritten)    sys.stderr = EmittingStr(textWritten=self.outputWritten)      self.pushButton.clicked.connect(self.bClicked)   def outputWritten(self, text):    cursor = self.textBrowser.textCursor()    cursor.movePosition(QtGui.QTextCursor.End)    cursor.insertText(text)    self.textBrowser.setTextCursor(cursor)    self.textBrowser.ensureCursorVisible()   def bClicked(self):    """Runs the main function."""    print('Begin')     self.printABCD()     print("End")   def printABCD(self):    print("aaaaaaaaaaaaaaaa")    print("bbbbbbbbbbbbbbbb")    print("cccccccccccccccc")    print("dddddddddddddddd")    if __name__ == "__main__":  app = QApplication(sys.argv)  win = ControlBoard()  win.show()  sys.exit(app.exec_())

版本三

#!/usr/bin/env python3# -*- coding:utf-8 -*- from PyQt5 import QtCore, QtGuiimport sysfrom PyQt5.QtCore import QEventLoop, QTimerfrom PyQt5.QtWidgets import QApplication, QMainWindow from Ui_ControlBoard import Ui_MainWindow class EmittingStr(QtCore.QObject):    textWritten = QtCore.pyqtSignal(str) #定义一个发送str的信号    def write(self, text):      self.textWritten.emit(str(text))  class ControlBoard(QMainWindow, Ui_MainWindow):  def __init__(self):    super(ControlBoard, self).__init__()    self.setupUi(self)    # 下面将输出重定向到textBrowser中    sys.stdout = EmittingStr(textWritten=self.outputWritten)    sys.stderr = EmittingStr(textWritten=self.outputWritten)      self.pushButton.clicked.connect(self.bClicked)   def outputWritten(self, text):    cursor = self.textBrowser.textCursor()    cursor.movePosition(QtGui.QTextCursor.End)    cursor.insertText(text)    self.textBrowser.setTextCursor(cursor)    self.textBrowser.ensureCursorVisible()   def bClicked(self):    """Runs the main function."""    print('Begin')     self.printABCD()     print("End")   def printABCD(self):    print("aaaaaaaaaaaaaaaa")    print("bbbbbbbbbbbbbbbb")    print("cccccccccccccccc")    print("dddddddddddddddd")    if __name__ == "__main__":  app = QApplication(sys.argv)  win = ControlBoard()  win.show()  sys.exit(app.exec_())