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Pyqt5实现英文学习词典

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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.

1、演示效果 。

1、整体效果 。

Pyqt5实现英文学习词典

2、添加:

Pyqt5实现英文学习词典

Pyqt5实现英文学习词典

3、添加相同单词时:

Pyqt5实现英文学习词典

4、查找 。

Pyqt5实现英文学习词典

5、查找文档中不存在时 。

Pyqt5实现英文学习词典

5、删除 。

Pyqt5实现英文学习词典

Pyqt5实现英文学习词典

Pyqt5实现英文学习词典

Pyqt5实现英文学习词典

2、源码 。

PyCharm + Python3 + PyQt5 。

1、工程结构 。

Pyqt5实现英文学习词典

2、PyQt5设计UI源码 。

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# -*- 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 。

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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 。

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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我.

原文链接：https://blog.csdn.net/qq_40602000/article/details/91347126 。

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