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主要內(nèi)容：

1、讀、寫輸入控件（Input Widgets）中的內(nèi)容（str）

2、保存數(shù)據(jù)到txt文件

3、從txt文件中讀內(nèi)容，與輸入控件中內(nèi)容比較

將上述各種輸入控件（Input Widgets）中的內(nèi)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", "確定/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

實戰(zhàn)案例：

登錄框--->輸入賬號密碼--->與txt文件中賬號密碼進行驗證--->進入下一個界面

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", "賬號："))
  self.label_2.setText(_translate("ok_cancle_Dialog", "密碼："))
  self.pushButton.setText(_translate("ok_cancle_Dialog", "確認"))
  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') #從logs文件夾下讀取account.txt文件 中的賬號 密碼
  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('賬號或密碼錯誤請重新輸入')

  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_())

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