python英语字典程序-Pyqt5实现英文学习词典

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); "

"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); "

"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); "

"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); "

"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(" ", "")

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 + ' ')

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(" ", "") # 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 sys

from dic_UI import Ui_MainWindow

from PyQt5.QtWidgets import *

from dictionary import DIC

if __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_())

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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