我不知道如何在一个文本框中输入，在另一个文本框中显示输出

Question

我不知道如何在一个文本框中获取用户的输入并在另一个文本框中显示输出。你知道吗

我试过了，但没用。你知道吗

from PyQt5 import QtCore, QtGui, QtWidgets
import os

def click(self):
    self.pushButton.click()
    print("hello")

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(664, 389)
        MainWindow.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor))
        MainWindow.setLayoutDirection(QtCore.Qt.LeftToRight)
        MainWindow.setAutoFillBackground(False)
        MainWindow.setStyleSheet("background-image: url(:/background/White-Marble-Background-product-Photography-backdrops-Newborn-Photo-props-baby-shower-PhotoCall-pictures-newborn-propsXt-6735.jpg_640x640.webp);")
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")

        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(20, 20, 621, 51))
        font = QtGui.QFont()
        font.setFamily("Yu Gothic UI Semibold")
        font.setPointSize(14)
        font.setBold(True)
        font.setWeight(75)
        self.lineEdit.setFont(font)
        self.lineEdit.setAutoFillBackground(False)
        self.lineEdit.setObjectName("lineEdit")
        inp_val = self.lineEdit.text()

        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(240, 290, 151, 41))
        font = QtGui.QFont()
        font.setFamily("Rubik")
        font.setPointSize(12)
        font.setBold(True)
        font.setWeight(75)
        self.pushButton.setFont(font)
        self.pushButton.setStyleSheet("background-color: rgb(240, 184, 160);")
        self.pushButton.setObjectName("pushButton")
        self.pushButton.clicked.connect(click(self))


        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setGeometry(QtCore.QRect(20, 90, 621, 191))
        font = QtGui.QFont()
        font.setFamily("Yu Gothic UI Semibold")
        font.setPointSize(14)
        font.setBold(True)
        font.setWeight(75)
        self.textEdit.setFont(font)
        self.textEdit.setCursorWidth(2)
        self.textEdit.setObjectName("textEdit")
        MainWindow.setCentralWidget(self.centralwidget)
        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", "Rahul"))
        self.pushButton.setText(_translate("MainWindow", "Run"))
        self.lineEdit.setPlaceholderText(_translate("MainWindow", "Type Your Text Here....."))
        self.textEdit.setPlaceholderText(_translate("MainWindow", "Your Output....."))
import test2_rc

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

如何在lineedit中输入并在textedit中显示输出？你知道吗

Answer 1

使用setPlainText：

def click(self):
    inputtext = self.lineEdit.text()
    self.textEdit.setPlainText(inputtext)

您还需要将函数click放入类Ui_MainWindow中，如下所示：

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        #your code
    def click(self):
        inputtext = self.lineEdit.text()
        self.textEdit.setPlainText(inputtext)

也可以调用函数click，如：

self.pushButton.clicked.connect(self.click)

Answer 2

试试看：

from PyQt5 import QtCore, QtGui, QtWidgets
# ? import os

#def click(self):
#    self.pushButton.click()
#    print("hello")

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(664, 389)
        MainWindow.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor))
        MainWindow.setLayoutDirection(QtCore.Qt.LeftToRight)
        MainWindow.setAutoFillBackground(False)
        MainWindow.setStyleSheet("background-image: url(:/background/White-Marble-Background-product-Photography-backdrops-Newborn-Photo-props-baby-shower-PhotoCall-pictures-newborn-propsXt-6735.jpg_640x640.webp);")
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")

        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(20, 20, 621, 51))
        font = QtGui.QFont()
        font.setFamily("Yu Gothic UI Semibold")
        font.setPointSize(14)
        font.setBold(True)
        font.setWeight(75)
        self.lineEdit.setFont(font)
        self.lineEdit.setAutoFillBackground(False)
        self.lineEdit.setObjectName("lineEdit")
        inp_val = self.lineEdit.text()

        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(240, 290, 151, 41))
        font = QtGui.QFont()
        font.setFamily("Rubik")
        font.setPointSize(12)
        font.setBold(True)
        font.setWeight(75)
        self.pushButton.setFont(font)
        self.pushButton.setStyleSheet("background-color: rgb(240, 184, 160);")
        self.pushButton.setObjectName("pushButton")
#        self.pushButton.clicked.connect(click(self))
        self.pushButton.clicked.connect(self.onClick)


        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setGeometry(QtCore.QRect(20, 90, 621, 191))
        font = QtGui.QFont()
        font.setFamily("Yu Gothic UI Semibold")
        font.setPointSize(14)
        font.setBold(True)
        font.setWeight(75)
        self.textEdit.setFont(font)
        self.textEdit.setCursorWidth(2)
        self.textEdit.setObjectName("textEdit")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

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

    def onClick(self):
#        self.pushButton.click()
        print("hello")
        self.textEdit.append(self.lineEdit.text())                   # < -


    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Rahul"))
        self.pushButton.setText(_translate("MainWindow", "Run"))
        self.lineEdit.setPlaceholderText(_translate("MainWindow", "Type Your Text Here....."))
        self.textEdit.setPlaceholderText(_translate("MainWindow", "Your Output....."))

# ? import test2_rc

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())