PyQt5中使用QtDesigner怎么实现文本框读写操作？很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。
1、读、写 输入控件（Input Widgets）中的内容（str）
2、保存数据到txt文件
3、从txt文件中读内容，与输入控件中内容比较
将上述各种输入控件（Input Widgets）中的内容保存到txt文件中：
Ui文件
# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(839, 589)
Dialog.setSizeGripEnabled(True)
self.pushButton = QtWidgets.QPushButton(Dialog)
self.pushButton.setGeometry(QtCore.QRect(210, 390, 91, 41))
self.pushButton.setObjectName("pushButton")
self.pushButton_2 = QtWidgets.QPushButton(Dialog)
self.pushButton_2.setGeometry(QtCore.QRect(530, 390, 91, 41))
self.pushButton_2.setObjectName("pushButton_2")
self.lineEdit = QtWidgets.QLineEdit(Dialog)
self.lineEdit.setGeometry(QtCore.QRect(140, 460, 291, 20))
self.lineEdit.setObjectName("lineEdit")
self.textEdit = QtWidgets.QTextEdit(Dialog)
self.textEdit.setGeometry(QtCore.QRect(140, 110, 541, 261))
self.textEdit.setObjectName("textEdit")
self.plainTextEdit = QtWidgets.QPlainTextEdit(Dialog)
self.plainTextEdit.setGeometry(QtCore.QRect(140, 490, 441, 91))
self.plainTextEdit.setObjectName("plainTextEdit")
self.spinBox = QtWidgets.QSpinBox(Dialog)
self.spinBox.setGeometry(QtCore.QRect(30, 290, 81, 22))
self.spinBox.setObjectName("spinBox")
self.doubleSpinBox = QtWidgets.QDoubleSpinBox(Dialog)
self.doubleSpinBox.setGeometry(QtCore.QRect(30, 340, 81, 22))
self.doubleSpinBox.setProperty("showGroupSeparator", False)
self.doubleSpinBox.setPrefix("")
self.doubleSpinBox.setProperty("value", 3.14)
self.doubleSpinBox.setObjectName("doubleSpinBox")
self.comboBox = QtWidgets.QComboBox(Dialog)
self.comboBox.setGeometry(QtCore.QRect(30, 60, 141, 22))
self.comboBox.setObjectName("comboBox")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.fontComboBox = QtWidgets.QFontComboBox(Dialog)
self.fontComboBox.setGeometry(QtCore.QRect(230, 60, 189, 22))
self.fontComboBox.setObjectName("fontComboBox")
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
self.pushButton.setText(_translate("Dialog", "确定/保存"))
self.pushButton_2.setText(_translate("Dialog", "退出"))
self.lineEdit.setText(_translate("Dialog", "123"))
self.textEdit.setHtml(_translate("Dialog", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'SimSun\'; font-size:9pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:12pt;\">input content：</span></p></body></html>"))
self.plainTextEdit.setPlainText(_translate("Dialog", "plainTextEdit"))
self.comboBox.setItemText(0, _translate("Dialog", "item1"))
self.comboBox.setItemText(1, _translate("Dialog", "item2"))
self.comboBox.setItemText(2, _translate("Dialog", "item3"))
self.comboBox.setItemText(3, _translate("Dialog", "item4"))
self.comboBox.setItemText(4, _translate("Dialog", "item5"))
self.comboBox.setItemText(5, _translate("Dialog", "item6"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
Dialog = QtWidgets.QDialog()
ui = Ui_Dialog()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())Main文件
# -*- coding: utf-8 -*- """ Module implementing file_dailog. """ import sys from PyQt5.QtCore import pyqtSlot from PyQt5.QtWidgets import QDialog from PyQt5 import QtWidgets from Ui_file_operation import Ui_Dialog class file_dailog(QDialog, Ui_Dialog): """ Class documentation goes here. """ def __init__(self, parent=None): super(file_dailog, self).__init__(parent) self.setupUi(self) self.pushButton.mousePressEvent = self.pushButton_clicked def pushButton_clicked(self, a): self.logging_data() @pyqtSlot() def on_pushButton_2_clicked(self): sys.exit(0) def logging_data(self): with open(r'logs\data.txt', 'w+') as f: f.write(self.textEdit.toPlainText()+'\n') f.write(self.lineEdit.text()+'\n') f.write(self.plainTextEdit.toPlainText()+'\n') f.write(self.comboBox.currentText()+'\n') f.write(self.fontComboBox.currentText()+'\n') f.write(self.fontComboBox.currentText()+'\n') f.write(str(self.spinBox.value())+'\n') f.write(str(self.doubleSpinBox.value())+'\n') if __name__ == "__main__": app = QtWidgets.QApplication(sys.argv) ui = file_dailog() ui.show() sys.exit(app.exec_()) Main文件
登录框--->输入账号密码--->与txt文件中账号密码进行验证--->进入下一个界面
UI文件
# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_ok_cancle_Dialog(object):
def setupUi(self, ok_cancle_Dialog):
ok_cancle_Dialog.setObjectName("ok_cancle_Dialog")
ok_cancle_Dialog.resize(411, 305)
ok_cancle_Dialog.setSizeGripEnabled(True)
self.horizontalLayout_4 = QtWidgets.QHBoxLayout(ok_cancle_Dialog)
self.horizontalLayout_4.setSizeConstraint(QtWidgets.QLayout.SetMinimumSize)
self.horizontalLayout_4.setSpacing(0)
self.horizontalLayout_4.setObjectName("horizontalLayout_4")
self.frame = QtWidgets.QFrame(ok_cancle_Dialog)
self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame.setObjectName("frame")
self.verticalLayout = QtWidgets.QVBoxLayout(self.frame)
self.verticalLayout.setObjectName("verticalLayout")
self.frame_2 = QtWidgets.QFrame(self.frame)
self.frame_2.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame_2.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame_2.setObjectName("frame_2")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.frame_2)
self.horizontalLayout.setObjectName("horizontalLayout")
self.label = QtWidgets.QLabel(self.frame_2)
font = QtGui.QFont()
font.setPointSize(15)
font.setBold(True)
font.setWeight(75)
self.label.setFont(font)
self.label.setObjectName("label")
self.horizontalLayout.addWidget(self.label)
self.lineEdit = QtWidgets.QLineEdit(self.frame_2)
self.lineEdit.setMinimumSize(QtCore.QSize(0, 25))
self.lineEdit.setObjectName("lineEdit")
self.horizontalLayout.addWidget(self.lineEdit)
self.verticalLayout.addWidget(self.frame_2)
self.frame_3 = QtWidgets.QFrame(self.frame)
self.frame_3.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame_3.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame_3.setObjectName("frame_3")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.frame_3)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.label_2 = QtWidgets.QLabel(self.frame_3)
font = QtGui.QFont()
font.setPointSize(15)
font.setBold(True)
font.setWeight(75)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.horizontalLayout_2.addWidget(self.label_2)
self.lineEdit_2 = QtWidgets.QLineEdit(self.frame_3)
self.lineEdit_2.setMinimumSize(QtCore.QSize(0, 25))
self.lineEdit_2.setText("")
self.lineEdit_2.setFrame(True)
self.lineEdit_2.setEchoMode(QtWidgets.QLineEdit.Password)
self.lineEdit_2.setReadOnly(False)
self.lineEdit_2.setObjectName("lineEdit_2")
self.horizontalLayout_2.addWidget(self.lineEdit_2)
self.verticalLayout.addWidget(self.frame_3)
self.label_3 = QtWidgets.QLabel(self.frame)
self.label_3.setMaximumSize(QtCore.QSize(16777215, 20))
font = QtGui.QFont()
font.setPointSize(10)
font.setBold(False)
font.setWeight(50)
self.label_3.setFont(font)
self.label_3.setStyleSheet("color: rgb(255, 0, 0);")
self.label_3.setText("")
self.label_3.setAlignment(QtCore.Qt.AlignCenter)
self.label_3.setObjectName("label_3")
self.verticalLayout.addWidget(self.label_3)
self.frame_4 = QtWidgets.QFrame(self.frame)
self.frame_4.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame_4.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame_4.setObjectName("frame_4")
self.horizontalLayout_3 = QtWidgets.QHBoxLayout(self.frame_4)
self.horizontalLayout_3.setObjectName("horizontalLayout_3")
self.pushButton = QtWidgets.QPushButton(self.frame_4)
font = QtGui.QFont()
font.setPointSize(11)
font.setBold(True)
font.setWeight(75)
self.pushButton.setFont(font)
self.pushButton.setStyleSheet("background-color: rgb(116, 255, 155);")
self.pushButton.setObjectName("pushButton")
self.horizontalLayout_3.addWidget(self.pushButton)
spacerItem = QtWidgets.QSpacerItem(30, 20, QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout_3.addItem(spacerItem)
self.pushButton_2 = QtWidgets.QPushButton(self.frame_4)
font = QtGui.QFont()
font.setPointSize(11)
font.setBold(True)
font.setWeight(75)
self.pushButton_2.setFont(font)
self.pushButton_2.setStyleSheet("background-color: rgb(62, 108, 73);")
self.pushButton_2.setObjectName("pushButton_2")
self.horizontalLayout_3.addWidget(self.pushButton_2)
self.verticalLayout.addWidget(self.frame_4)
self.horizontalLayout_4.addWidget(self.frame)
self.retranslateUi(ok_cancle_Dialog)
QtCore.QMetaObject.connectSlotsByName(ok_cancle_Dialog)
def retranslateUi(self, ok_cancle_Dialog):
_translate = QtCore.QCoreApplication.translate
ok_cancle_Dialog.setWindowTitle(_translate("ok_cancle_Dialog", "Dialog"))
self.label.setText(_translate("ok_cancle_Dialog", "账号："))
self.label_2.setText(_translate("ok_cancle_Dialog", "密码："))
self.pushButton.setText(_translate("ok_cancle_Dialog", "确认"))
self.pushButton_2.setText(_translate("ok_cancle_Dialog", "取消"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
ok_cancle_Dialog = QtWidgets.QDialog()
ui = Ui_ok_cancle_Dialog()
ui.setupUi(ok_cancle_Dialog)
ok_cancle_Dialog.show()
sys.exit(app.exec_())main文件
# -*- coding: utf-8 -*-
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtWidgets import QDialog
from PyQt5 import QtWidgets
from Ui_ok_cancel import Ui_ok_cancle_Dialog
class ok_cancle_Dialog(QDialog, Ui_ok_cancle_Dialog):
def __init__(self, parent=None):
super(ok_cancle_Dialog, self).__init__(parent)
self.setupUi(self)
@pyqtSlot()
def on_pushButton_clicked(self):
f = open(r'logs\account.txt', 'r+',encoding='utf8') #从logs文件夹下读取account.txt文件 中的账号 密码
data = f.readlines()
confirm = data[0].rstrip('\n') == self.lineEdit.text() and data[1] == self.lineEdit_2.text()
if confirm:
from selenium import webdriver
browser = webdriver.Chrome()
browser.get("http://www.taobao.com")
browser.maximize_window()
else:
#print('=======================')
self.label_3.setText('账号或密码错误请重新输入')
f.close()
@pyqtSlot()
def on_pushButton_2_clicked(self):
self.lineEdit.setText('')
self.lineEdit_2.setText('')
self.label_3.setText('')
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
ui = ok_cancle_Dialog()
ui.show()
sys.exit(app.exec_())看完上述内容是否对您有帮助呢？如果还想对相关知识有进一步的了解或阅读更多相关文章，请关注亿速云行业资讯频道，感谢您对亿速云的支持。
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