Pyqt5实现英文学习词典

Python  /  管理员 发布于 5年前   617

运用Python语言编写程序制作英文学习词典，词典有4个基本功能：添加、查询、删除和退出。程序读取源文件路径下的txt格式词典文件，若没有就创建一个。词典文件存储方式为“英文单词 中文单词”，每行仅有一对中英释义。程序会根据用户的选择进入相应的功能模块，并显示相应的操作提示。当添加的单词已存在时，显示“该单词已添加到字典库”；当查询的单词不存在时，显示“字典库中未找到这个单词”；但需要删除某个单词时先查询再删除该单词的全部中英文释义。

一、演示效果

1、整体效果

2、添加：

3、添加相同单词时：

4、查找

5、查找文档中不存在时

5、删除

二、源码

PyCharm + Python3 + PyQt5

1、工程结构

2、PyQt5设计UI源码

# -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'dic_UI.ui'## Created by: PyQt5 UI code generator 5.11.3## WARNING! All changes made in this file will be lost! from PyQt5 import QtCore, QtGui, QtWidgets class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(672, 634) MainWindow.setStyleSheet("background-color: rgb(0, 0, 255);") self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget) self.verticalLayout.setObjectName("verticalLayout") self.gridLayout_4 = QtWidgets.QGridLayout() self.gridLayout_4.setObjectName("gridLayout_4") self.groupBox = QtWidgets.QGroupBox(self.centralwidget) font = QtGui.QFont() font.setPointSize(20) self.groupBox.setFont(font) self.groupBox.setStyleSheet("color: rgb(255, 255, 255);") self.groupBox.setObjectName("groupBox") self.widget = QtWidgets.QWidget(self.groupBox) self.widget.setGeometry(QtCore.QRect(20, 40, 601, 131)) self.widget.setObjectName("widget") self.gridLayout = QtWidgets.QGridLayout(self.widget) self.gridLayout.setContentsMargins(0, 0, 0, 0) self.gridLayout.setObjectName("gridLayout") self.label_2 = QtWidgets.QLabel(self.widget) font = QtGui.QFont() font.setPointSize(20) self.label_2.setFont(font) self.label_2.setObjectName("label_2") self.gridLayout.addWidget(self.label_2, 0, 0, 1, 1) self.lineEdit_English = QtWidgets.QLineEdit(self.widget) font = QtGui.QFont() font.setPointSize(20) self.lineEdit_English.setFont(font) self.lineEdit_English.setStyleSheet("background-color: rgb(255, 255, 255);\n""color: rgb(0, 0, 0);") self.lineEdit_English.setText("") self.lineEdit_English.setObjectName("lineEdit_English") self.gridLayout.addWidget(self.lineEdit_English, 0, 1, 1, 1) self.pushButton_add = QtWidgets.QPushButton(self.widget) font = QtGui.QFont() font.setPointSize(16) self.pushButton_add.setFont(font) self.pushButton_add.setObjectName("pushButton_add") self.gridLayout.addWidget(self.pushButton_add, 0, 2, 1, 1) self.label_3 = QtWidgets.QLabel(self.widget) font = QtGui.QFont() font.setPointSize(20) self.label_3.setFont(font) self.label_3.setObjectName("label_3") self.gridLayout.addWidget(self.label_3, 1, 0, 1, 1) self.lineEdit_chinese = QtWidgets.QLineEdit(self.widget) font = QtGui.QFont() font.setPointSize(20) self.lineEdit_chinese.setFont(font) self.lineEdit_chinese.setStyleSheet("background-color: rgb(255, 255, 255);\n""color: rgb(0, 0, 0);") self.lineEdit_chinese.setObjectName("lineEdit_chinese") self.gridLayout.addWidget(self.lineEdit_chinese, 1, 1, 1, 1) self.pushButton_reset = QtWidgets.QPushButton(self.widget) font = QtGui.QFont() font.setPointSize(16) self.pushButton_reset.setFont(font) self.pushButton_reset.setObjectName("pushButton_reset") self.gridLayout.addWidget(self.pushButton_reset, 1, 2, 1, 1) self.gridLayout_4.addWidget(self.groupBox, 0, 0, 1, 1) self.groupBox_2 = QtWidgets.QGroupBox(self.centralwidget) font = QtGui.QFont() font.setPointSize(20) self.groupBox_2.setFont(font) self.groupBox_2.setStyleSheet("color: rgb(255, 255, 255);") self.groupBox_2.setObjectName("groupBox_2") self.widget1 = QtWidgets.QWidget(self.groupBox_2) self.widget1.setGeometry(QtCore.QRect(40, 40, 561, 131)) self.widget1.setObjectName("widget1") self.gridLayout_2 = QtWidgets.QGridLayout(self.widget1) self.gridLayout_2.setContentsMargins(0, 0, 0, 0) self.gridLayout_2.setObjectName("gridLayout_2") self.label_4 = QtWidgets.QLabel(self.widget1) font = QtGui.QFont() font.setPointSize(20) self.label_4.setFont(font) self.label_4.setObjectName("label_4") self.gridLayout_2.addWidget(self.label_4, 0, 0, 1, 1) self.lineEdit_find = QtWidgets.QLineEdit(self.widget1) font = QtGui.QFont() font.setPointSize(20) self.lineEdit_find.setFont(font) self.lineEdit_find.setStyleSheet("background-color: rgb(255, 255, 255);\n""color: rgb(0, 0, 0);") self.lineEdit_find.setText("") self.lineEdit_find.setObjectName("lineEdit_find") self.gridLayout_2.addWidget(self.lineEdit_find, 0, 1, 1, 1) self.pushButton_find = QtWidgets.QPushButton(self.widget1) font = QtGui.QFont() font.setPointSize(16) self.pushButton_find.setFont(font) self.pushButton_find.setObjectName("pushButton_find") self.gridLayout_2.addWidget(self.pushButton_find, 0, 2, 1, 1) self.groupBox_4 = QtWidgets.QGroupBox(self.widget1) self.groupBox_4.setTitle("") self.groupBox_4.setObjectName("groupBox_4") self.label_result = QtWidgets.QLabel(self.groupBox_4) self.label_result.setGeometry(QtCore.QRect(20, 10, 501, 51)) font = QtGui.QFont() font.setPointSize(20) self.label_result.setFont(font) self.label_result.setText("") self.label_result.setAlignment(QtCore.Qt.AlignCenter) self.label_result.setObjectName("label_result") self.gridLayout_2.addWidget(self.groupBox_4, 1, 0, 1, 3) self.gridLayout_4.addWidget(self.groupBox_2, 1, 0, 1, 1) self.groupBox_3 = QtWidgets.QGroupBox(self.centralwidget) font = QtGui.QFont() font.setPointSize(20) self.groupBox_3.setFont(font) self.groupBox_3.setStyleSheet("color: rgb(255, 255, 255);") self.groupBox_3.setObjectName("groupBox_3") self.label_del = QtWidgets.QLabel(self.groupBox_3) self.label_del.setGeometry(QtCore.QRect(40, 120, 561, 51)) font = QtGui.QFont() font.setPointSize(20) self.label_del.setFont(font) self.label_del.setText("") self.label_del.setAlignment(QtCore.Qt.AlignCenter) self.label_del.setObjectName("label_del") self.widget2 = QtWidgets.QWidget(self.groupBox_3) self.widget2.setGeometry(QtCore.QRect(40, 40, 561, 61)) self.widget2.setObjectName("widget2") self.gridLayout_3 = QtWidgets.QGridLayout(self.widget2) self.gridLayout_3.setContentsMargins(0, 0, 0, 0) self.gridLayout_3.setObjectName("gridLayout_3") self.label_6 = QtWidgets.QLabel(self.widget2) font = QtGui.QFont() font.setPointSize(20) self.label_6.setFont(font) self.label_6.setObjectName("label_6") self.gridLayout_3.addWidget(self.label_6, 0, 0, 1, 1) self.lineEdit_del = QtWidgets.QLineEdit(self.widget2) font = QtGui.QFont() font.setPointSize(20) self.lineEdit_del.setFont(font) self.lineEdit_del.setStyleSheet("background-color: rgb(255, 255, 255);\n""color: rgb(0, 0, 0);") self.lineEdit_del.setText("") self.lineEdit_del.setObjectName("lineEdit_del") self.gridLayout_3.addWidget(self.lineEdit_del, 0, 1, 1, 1) self.pushButton_del = QtWidgets.QPushButton(self.widget2) font = QtGui.QFont() font.setPointSize(16) self.pushButton_del.setFont(font) self.pushButton_del.setObjectName("pushButton_del") self.gridLayout_3.addWidget(self.pushButton_del, 0, 2, 1, 1) self.gridLayout_4.addWidget(self.groupBox_3, 2, 0, 1, 1) self.verticalLayout.addLayout(self.gridLayout_4) MainWindow.setCentralWidget(self.centralwidget) self.menubar = QtWidgets.QMenuBar(MainWindow) self.menubar.setGeometry(QtCore.QRect(0, 0, 672, 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.groupBox.setTitle(_translate("MainWindow", "添加词典")) self.label_2.setText(_translate("MainWindow", "英文：")) self.pushButton_add.setText(_translate("MainWindow", "添加")) self.label_3.setText(_translate("MainWindow", "中文：")) self.pushButton_reset.setText(_translate("MainWindow", "重置")) self.groupBox_2.setTitle(_translate("MainWindow", "查找词典")) self.label_4.setText(_translate("MainWindow", "英文：")) self.pushButton_find.setText(_translate("MainWindow", "查找")) self.groupBox_3.setTitle(_translate("MainWindow", "删除词典")) self.label_6.setText(_translate("MainWindow", "英文：")) self.pushButton_del.setText(_translate("MainWindow", "删除"))

3、后台源码

from PyQt5.QtWidgets import *class DIC: def __init__(self, ui, mainWnd): self.ui = ui self.mainWnd = mainWnd self.mainWnd.setWindowTitle('英文学习词典 作者：申俊') self.ui.pushButton_add.clicked.connect(self.add) self.ui.pushButton_reset.clicked.connect(self.reset) self.ui.pushButton_find.clicked.connect(self.find) self.ui.pushButton_del.clicked.connect(self.delate)  def add(self): yinwen = self.ui.lineEdit_English.text() zhongwen = self.ui.lineEdit_chinese.text() print("添加:", yinwen, zhongwen) flag = 0 dic = {} try:  f = open("2016117249.txt", 'r') except FileNotFoundError:  open("2016117249.txt", mode='w', encoding='utf-8')  f = open("2016117249.txt", 'r') for line in f.readlines():  line = line.replace("\n", "")  line = list(line.split(","))  key = line[0]  coment = line[1:]  dic[key] = coment  if yinwen in dic.keys():  f.close()  flag = 1  self.ui.label_result.setText("该单词已添加到字典库！")  break  else:  f.close() if flag != 1:  fw = open("2016117249.txt", 'a')  try:  fw.write(yinwen + ',' + zhongwen + '\n')  self.ui.label_result.setText("添加成功!")  except:  self.ui.label_result.setText("添加失败!")  fw.close()  def reset(self): self.ui.lineEdit_chinese.clear() self.ui.lineEdit_English.clear() self.ui.label_result.setText("")   def find(self): w = self.ui.lineEdit_find.text() fr = open("2016117249.txt", 'r') dic = {} for line in fr.readlines():  line = line.replace("\n", "") # 去除每一行末尾的换行符  line = list(line.split(",")) # 将每行的英文与各个汉语意思分隔开，生成一个列表  key = line[0] # 将每行开头的英文设置为键  coment = line[1:] # 将1往后位置的所有汉语意思设置为值  dic[key] = coment # 设置字典 if w in dic.keys(): # 如果输入的单词存在，则对其键值打印  self.ui.label_result.setText("翻译结果：" + str(dic[w])) else:  self.ui.label_result.setText("字典库中未找到这个单词") fr.close()  def delate(self): reply = QMessageBox.question(self.mainWnd, 'Message', '确认删除',     QMessageBox.Yes | QMessageBox.No, QMessageBox.No) if reply == QMessageBox.Yes:  word = self.ui.lineEdit_del.text()  lines = [l for l in open("2016117249.txt", "r") if l.find(word, 0, len(word)) != 0]  fd = open("2016117249.txt", "w")  try:  fd.writelines(lines)  self.ui.label_del.setText(word + "已经被删除")  except:  self.ui.label_del.setText(word + "删除失败")  fd.close()

4、主程序

import sysfrom dic_UI import Ui_MainWindowfrom PyQt5.QtWidgets import *from dictionary import DICif __name__ == '__main__': app = QApplication(sys.argv) mainWnd = QMainWindow() ui = Ui_MainWindow() # 可以理解成将创建的 ui 绑定到新建的 mainWnd 上 ui.setupUi(mainWnd) display = DIC(ui, mainWnd) mainWnd.show() sys.exit(app.exec_())

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