PyQt5实现简易电子词典
PyQt5是python中一个非常实用的GUI编程模块，功能十分强大。刚刚学完了Pyqt的编程，就迫不及待的写出了一个电子词典GUI程序。整个程序使用qtDesiner把整个gui界面做好，槽函数则自己写好的。电子词典实现了查询单词，查询历史记录，收藏和查看单词本的功能，另外为了是程序更加炫酷，还添加了一个启动界面。具体代码如下：
第一个为主程序代码，主要实现槽函数功能。
fromPyQt5.QtCoreimportpyqtSlot
fromPyQt5.QtWidgetsimportQMainWindow
fromPyQt5importQtWidgets
fromUi_E_Dict_MainimportUi_E_Dictory
fromPyQt5.QtWidgetsimport*
fromPyQt5.QtGuiimport*
fromPyQt5.QtCoreimport*
importtime,re
#槽函数代码，运行程序需要运行本文件
classMainWindow(QMainWindow,Ui_E_Dictory):
"""
Classdocumentationgoeshere.
"""
def__init__(self,parent=None):
"""
Constructor
@paramparentreferencetotheparentwidget
@typeQWidget
"""
super(MainWindow,self).__init__(parent)
self.setupUi(self)
#启动时休眠1秒
time.sleep(1)
#按钮1查找单词,把单词显示在textBrowser的同时,插入历史记录
@pyqtSlot()
defon_pushButton_clicked(self):
"""
Slotdocumentationgoeshere.
"""
#单词查询,需要先有一个'dict.txt'文件,其中有大量的英文单词和注释
#此处也可以先把'dict.txt'插入数据库,历史记录和单词本的插入和查询都可以直接操作数据库
#不过数据库需要事先安装数据库,并建立相应的表,不好打包,不太方便
word=self.lineEdit.text()
f=open('dict.txt','r')
forlineinf:
#对字典文件的数据进行分析,拆解为适合显示的格式
l=re.split('[]+',line)
ifl[0]==word:
interpret=''.join(l[1:])
data='%s\n%s'%(l[0],interpret)
#interpret='%s:%s'%(l[0],''.join(l[1:]))
self.textBrowser.setText(data)
#当地时间
t1=time.localtime()
t2=time.asctime(t1)
#self.lineEdit.setText("")#lineEdit输入后清零,可要可不要
try:
#把所查询单词插入历史记录中，
#'a'以只写文件打开一个文件，如果有原文件则追加到文件末尾
file=open('history.txt','at')
msg='%s%s'%(word,t2)
file.write(msg)
file.write('\n')
file.close()
exceptExceptionase:
print(e)
f.close()
@pyqtSlot()
defon_pushButton_2_clicked(self):
"""
Slotdocumentationgoeshere.
"""
try:
#查询历史记录,把历史记录显示在textBrowser中
file=open('history.txt','rt')
list=file.readlines()
msg=''.join(list)
self.textBrowser.setText(msg)
file.close()
exceptExceptionase:
print(e)
@pyqtSlot()
defon_pushButton_3_clicked(self):
"""
Slotdocumentationgoeshere.
"""
try:
#查询单词本,把单词本显示在textBrowser中
file=open('words.txt','rt')
list=file.readlines()
msg=''.join(list)
self.textBrowser.setText(msg)
file.close()
exceptExceptionase:
print(e)
@pyqtSlot()
defon_pushButton_4_clicked(self):
"""
Slotdocumentationgoeshere.
"""
word=self.lineEdit.text()
try:
#把所查询单词插入单词本中
file=open('words.txt','at')
file.write(word)
file.write('\n')
file.close()
exceptExceptionase:
print(e)
if__name__=="__main__":
importsys
app=QtWidgets.QApplication(sys.argv)
#启动界面的实现,可以使程序更加炫酷
splash=QtWidgets.QSplashScreen(QPixmap("SavedPictures/5b517f520feaa.jpg"))
#启动界面显示
splash.show()
#在启动界面中显示程序加载进度，参数意思分别为居中显示，蓝色字体
splash.showMessage('正在加载图片资源',Qt.AlignCenter,Qt.blue)
time.sleep(1)
#为了不与主程序干扰
app.processEvents()
ui=MainWindow()
ui.show()
#启动界面完成
splash.finish(ui)
sys.exit(app.exec_())
第二个程序代码，主要实现整体的GUI界面的构建（使用Qtdesiner可以极大的简化工作量，强烈推荐）
fromPyQt5importQtCore,QtGui,QtWidgets
classUi_E_Dictory(object):
defsetupUi(self,E_Dictory):
E_Dictory.setObjectName("E_Dictory")
E_Dictory.resize(658,474)
icon=QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("icon/24-monitor.png"),QtGui.QIcon.Normal,QtGui.QIcon.Off)
E_Dictory.setWindowIcon(icon)
self.centralWidget=QtWidgets.QWidget(E_Dictory)
self.centralWidget.setObjectName("centralWidget")
self.pushButton=QtWidgets.QPushButton(self.centralWidget)
self.pushButton.setGeometry(QtCore.QRect(390,400,91,31))
font=QtGui.QFont()
font.setFamily("黑体")
font.setPointSize(14)
self.pushButton.setFont(font)
self.pushButton.setObjectName("pushButton")
self.label_2=QtWidgets.QLabel(self.centralWidget)
self.label_2.setGeometry(QtCore.QRect(100,400,51,31))
font=QtGui.QFont()
font.setFamily("黑体")
font.setPointSize(14)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.textBrowser=QtWidgets.QTextBrowser(self.centralWidget)
self.textBrowser.setGeometry(QtCore.QRect(100,110,381,271))
self.textBrowser.setStyleSheet("background-color:rgb(242,255,233);")
self.textBrowser.setObjectName("textBrowser")
self.lineEdit=QtWidgets.QLineEdit(self.centralWidget)
self.lineEdit.setGeometry(QtCore.QRect(160,400,211,31))
font=QtGui.QFont()
font.setFamily("楷体")
font.setPointSize(10)
self.lineEdit.setFont(font)
self.lineEdit.setText("")
self.lineEdit.setObjectName("lineEdit")
self.label=QtWidgets.QLabel(self.centralWidget)
self.label.setGeometry(QtCore.QRect(240,60,151,31))
font=QtGui.QFont()
font.setFamily("楷体")
font.setPointSize(14)
font.setBold(False)
font.setWeight(50)
self.label.setFont(font)
self.label.setObjectName("label")
self.pushButton_2=QtWidgets.QPushButton(self.centralWidget)
self.pushButton_2.setGeometry(QtCore.QRect(510,140,75,23))
self.pushButton_2.setObjectName("pushButton_2")
self.pushButton_3=QtWidgets.QPushButton(self.centralWidget)
self.pushButton_3.setGeometry(QtCore.QRect(510,220,75,23))
self.pushButton_3.setObjectName("pushButton_3")
self.pushButton_4=QtWidgets.QPushButton(self.centralWidget)
self.pushButton_4.setGeometry(QtCore.QRect(510,310,75,23))
self.pushButton_4.setObjectName("pushButton_4")
self.graphicsView=QtWidgets.QGraphicsView(self.centralWidget)
self.graphicsView.setGeometry(QtCore.QRect(0,0,661,471))
self.graphicsView.setStyleSheet("border-image:url(:/pic/SavedPictures/f3cb924702022fc35eb6f865d67e23a6.jpg);")
self.graphicsView.setObjectName("graphicsView")
self.graphicsView.raise_()
self.pushButton.raise_()
self.label_2.raise_()
self.textBrowser.raise_()
self.lineEdit.raise_()
self.label.raise_()
self.pushButton_2.raise_()
self.pushButton_3.raise_()
self.pushButton_4.raise_()
E_Dictory.setCentralWidget(self.centralWidget)
self.retranslateUi(E_Dictory)
QtCore.QMetaObject.connectSlotsByName(E_Dictory)
defretranslateUi(self,E_Dictory):
_translate=QtCore.QCoreApplication.translate
E_Dictory.setWindowTitle(_translate("E_Dictory","无道词典"))
self.pushButton.setText(_translate("E_Dictory","查找"))
#快捷键回车,可以使查找按钮发生效果
self.pushButton.setShortcut(_translate("E_Dictory","Return"))
self.label_2.setText(_translate("E_Dictory","单词："))
#setHtml样式表可以按照自己喜好修改
self.textBrowser.setHtml(_translate("E_Dictory","\n"
"\n"
"p,li{white-space:pre-wrap;}\n"
"\n"
"