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主页 / 问题 / 1432612
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Era_of__ enlightenment
Era_of__ enlightenment
Asked:2022-07-24 21:36:18 +0000 UTC2022-07-24 21:36:18 +0000 UTC 2022-07-24 21:36:18 +0000 UTC

如何在 lineEdit 上显示打印?

  • 772

我正在做一个心算训练师。我开始掌握 PyQT5。
在程序中,需要显示两个随机数的乘积,并输入相乘的结果。

如何在没有界面的情况下使其清晰。我不知道如何print在 PyQT5 的输出字段中显示。

main.py文件中的这段代码:

import sys,random
from PyQt5 import QtCore, QtGui, QtWidgets
from Ui_TestGUI2_3 import Ui_TestGUI2


if __name__ == "__main__":

    app = QtWidgets.QApplication(sys.argv)
    TestGUI2 = QtWidgets.QMainWindow()
    ui = Ui_TestGUI2()
    ui.setupUi(TestGUI2)
    TestGUI2.show()
    sys.exit(app.exec_())

def Qcount(self):
    a=random.randrange(-100,100)
    b=random.randrange(-100,100)
    print(a,"*",b)#Этот принт вывести на lineEdit1
    d=int(input())
    if d==a*b:
        print("Все верно")

应该使用什么方法来打印输出?

这部分在Ui_TestGUI2_3.py中(由Qt Designer创建)

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_TestGUI2(object):
    def setupUi(self, TestGUI2):
        TestGUI2.setObjectName("TestGUI2")
        TestGUI2.resize(387, 315)
        self.centralwidget = QtWidgets.QWidget(TestGUI2)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(110, 130, 158, 23))
        self.pushButton.setObjectName("pushButton")
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(110, 30, 161, 41))
        self.lineEdit.setObjectName("lineEdit")
        self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit_2.setGeometry(QtCore.QRect(110, 80, 161, 41))
        self.lineEdit_2.setObjectName("lineEdit_2")
        TestGUI2.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(TestGUI2)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 387, 21))
        self.menubar.setObjectName("menubar")
        TestGUI2.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(TestGUI2)
        self.statusbar.setObjectName("statusbar")
        TestGUI2.setStatusBar(self.statusbar)

        self.retranslateUi(TestGUI2)
        QtCore.QMetaObject.connectSlotsByName(TestGUI2)

    def retranslateUi(self, TestGUI2):
        _translate = QtCore.QCoreApplication.translate
        TestGUI2.setWindowTitle(_translate("TestGUI2", "TestGUI2"))
        self.pushButton.setText(_translate("TestGUI2", "PushButton"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    TestGUI2 = QtWidgets.QMainWindow()
    ui = Ui_TestGUI2()
    ui.setupUi(TestGUI2)
    TestGUI2.show()
    sys.exit(app.exec_())
python ооп
  • 1 1 个回答
  • 38 Views

1 个回答

  • Voted
  1. Best Answer
    S. Nick
    2022-07-24T22:31:13Z2022-07-24T22:31:13Z

    文本:QString

    此属性包含行编辑文本。

    设置此属性会清除选择,清除撤消/重做历史,将光标移动到行尾,并将修改后的属性重置为 false。使用setText ()粘贴文本时不验证文本。

    self.lineEdit.setText(f'{self.a} *  {self.b} = ?')
    

    import sys
    import random
    from PyQt5 import QtCore, QtGui, QtWidgets
    
    #from Ui_TestGUI2_3 import Ui_TestGUI2
    class Ui_TestGUI2(object):
        def setupUi(self, TestGUI2):
            TestGUI2.setObjectName("TestGUI2")
            TestGUI2.resize(387, 315)
            self.centralwidget = QtWidgets.QWidget(TestGUI2)
            self.centralwidget.setObjectName("centralwidget")
            
            self.pushButton = QtWidgets.QPushButton(self.centralwidget)
            self.pushButton.setGeometry(QtCore.QRect(110, 130, 158, 23))
            self.pushButton.setObjectName("pushButton")
            
            self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
            self.lineEdit.setGeometry(QtCore.QRect(110, 30, 161, 41))
            self.lineEdit.setObjectName("lineEdit")
            
            self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
            self.lineEdit_2.setGeometry(QtCore.QRect(110, 80, 161, 41))
            self.lineEdit_2.setObjectName("lineEdit_2")
            
            TestGUI2.setCentralWidget(self.centralwidget)
            self.menubar = QtWidgets.QMenuBar(TestGUI2)
            self.menubar.setGeometry(QtCore.QRect(0, 0, 387, 21))
            self.menubar.setObjectName("menubar")
            TestGUI2.setMenuBar(self.menubar)
            self.statusbar = QtWidgets.QStatusBar(TestGUI2)
            self.statusbar.setObjectName("statusbar")
            TestGUI2.setStatusBar(self.statusbar)
    
            self.retranslateUi(TestGUI2)
            QtCore.QMetaObject.connectSlotsByName(TestGUI2)
    
        def retranslateUi(self, TestGUI2):
            _translate = QtCore.QCoreApplication.translate
            TestGUI2.setWindowTitle(_translate("TestGUI2", "TestGUI2"))
            self.pushButton.setText(_translate("TestGUI2", "PushButton"))
    
    
    class MainWindow(QtWidgets.QMainWindow, Ui_TestGUI2):
        def __init__(self):
            super().__init__()
            
            self.setupUi(self)
            
            self.lineEdit.setReadOnly(True)
            self.lineEdit_2.setPlaceholderText('Введите ответ здесь.')
            self.pushButton.clicked.connect(self.on_clicked)
            
            self.a = 0
            self.b = 0
            self.qcount()
            
        def qcount(self):
            self.a = random.randrange(-100, 100)
            self.b = random.randrange(-100, 100)
    #        print(self.a, "*", self.b)                #  Этот принт вывести на lineEdit1
            self.lineEdit.setText(f'{self.a} *  {self.b} = ?')
    
        def on_clicked(self):
            d = self.lineEdit_2.text() 
            if not d:
                msg = QtWidgets.QMessageBox.information(
                    self, 'Внимание', 'Вам надо ввести ответ.')
                return
            try:
                d = int(d)
            except:
                d = 9999
            
            if d == int(self.a) * int(self.b):    
                msg = QtWidgets.QMessageBox.information(
                    self, 'Все верно', f'{self.a} *  {self.b} = {d}')
                self.qcount()
                self.lineEdit_2.clear()   
            else:
                msg = QtWidgets.QMessageBox.information(
                    self, 'Error', f'{self.a} *  {self.b} != {self.lineEdit_2.text()} \n попробуйте еще раз.')
                self.lineEdit_2.clear()  
            self.lineEdit_2.setFocus()             
            
    
    if __name__ == "__main__":
        app = QtWidgets.QApplication(sys.argv)
        w = MainWindow()
        w.show()
        sys.exit(app.exec_())
    

    在此处输入图像描述


    更新:

    但是如何将其拆分为 2 个文件,以便您可以编辑设计并添加功能?

    主文件

    import sys
    import random
    from PyQt5 import QtCore, QtGui, QtWidgets
    from Ui_TestGUI2_3 import Ui_TestGUI2
    
    
    class MainWindow(QtWidgets.QMainWindow, Ui_TestGUI2):
        def __init__(self):
            super().__init__()
            
            self.setupUi(self)
            
            self.lineEdit.setReadOnly(True)
            self.lineEdit_2.setPlaceholderText('Введите ответ здесь.')
            self.pushButton.clicked.connect(self.on_clicked)
            
            self.a = 0
            self.b = 0
            self.qcount()
            
        def qcount(self):
            self.a = random.randrange(-100, 100)
            self.b = random.randrange(-100, 100)
    #        print(self.a, "*", self.b)                #  Этот принт вывести на lineEdit1
            self.lineEdit.setText(f'{self.a} *  {self.b} = ?')
    
        def on_clicked(self):
            d = self.lineEdit_2.text() 
            if not d:
                msg = QtWidgets.QMessageBox.information(
                    self, 'Внимание', 'Вам надо ввести ответ.')
                return
            try:
                d = int(d)
            except:
                d = 9999
            
            if d == int(self.a) * int(self.b):    
                msg = QtWidgets.QMessageBox.information(
                    self, 'Все верно', f'{self.a} *  {self.b} = {d}')
                self.qcount()
                self.lineEdit_2.clear()   
            else:
                msg = QtWidgets.QMessageBox.information(
                    self, 'Error', f'{self.a} *  {self.b} != {self.lineEdit_2.text()} \n попробуйте еще раз.')
                self.lineEdit_2.clear()  
            self.lineEdit_2.setFocus()             
            
    
    if __name__ == "__main__":
        app = QtWidgets.QApplication(sys.argv)
        w = MainWindow()
        w.show()
        sys.exit(app.exec_())
    

    ui_TestGUI2_3.py

    from PyQt5 import QtCore, QtGui, QtWidgets
    
    class Ui_TestGUI2(object):
        def setupUi(self, TestGUI2):
            TestGUI2.setObjectName("TestGUI2")
            TestGUI2.resize(387, 315)
            self.centralwidget = QtWidgets.QWidget(TestGUI2)
            self.centralwidget.setObjectName("centralwidget")
            
            self.pushButton = QtWidgets.QPushButton(self.centralwidget)
            self.pushButton.setGeometry(QtCore.QRect(110, 130, 158, 23))
            self.pushButton.setObjectName("pushButton")
            
            self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
            self.lineEdit.setGeometry(QtCore.QRect(110, 30, 161, 41))
            self.lineEdit.setObjectName("lineEdit")
            
            self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
            self.lineEdit_2.setGeometry(QtCore.QRect(110, 80, 161, 41))
            self.lineEdit_2.setObjectName("lineEdit_2")
            
            TestGUI2.setCentralWidget(self.centralwidget)
            self.menubar = QtWidgets.QMenuBar(TestGUI2)
            self.menubar.setGeometry(QtCore.QRect(0, 0, 387, 21))
            self.menubar.setObjectName("menubar")
            TestGUI2.setMenuBar(self.menubar)
            self.statusbar = QtWidgets.QStatusBar(TestGUI2)
            self.statusbar.setObjectName("statusbar")
            TestGUI2.setStatusBar(self.statusbar)
    
            self.retranslateUi(TestGUI2)
            QtCore.QMetaObject.connectSlotsByName(TestGUI2)
    
        def retranslateUi(self, TestGUI2):
            _translate = QtCore.QCoreApplication.translate
            TestGUI2.setWindowTitle(_translate("TestGUI2", "TestGUI2"))
            self.pushButton.setText(_translate("TestGUI2", "PushButton"))
    
    • 1

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