PyQt5是python中一個非常實用的GUI程式設計子產品，功能十分強大。剛剛學完了Pyqt的程式設計，就迫不及待的寫出了一個電子詞典GUI程式。整個程式使用qt Desiner把整個gui界面做好，槽函數則自己寫好的。電子詞典實作了查詢單詞，查詢曆史記錄，收藏和檢視單詞本的功能，另外為了是程式更加炫酷，還添加了一個啟動界面。具體代碼如下：
第一個為主程式代碼，主要實作槽函數功能。
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtWidgets import QMainWindow
from PyQt5 import QtWidgets
from Ui_E_Dict_Main import Ui_E_Dictory
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import time, re
# 槽函數代碼，運作程式需要運作本檔案
class MainWindow(QMainWindow, Ui_E_Dictory):
"""
Class documentation goes here.
"""
def __init__(self, parent=None):
"""
Constructor
@param parent reference to the parent widget
@type QWidget
"""
super(MainWindow, self).__init__(parent)
self.setupUi(self)
# 啟動時休眠1秒
time.sleep(1)
# 按鈕1 查找單詞,把單詞顯示在textBrowser的同時,插入曆史記錄
@pyqtSlot()
def on_pushButton_clicked(self):
"""
Slot documentation goes here.
"""
# 單詞查詢,需要先有一個'dict.txt'檔案,其中有大量的英文單詞和注釋
# 此處也可以先把'dict.txt'插入資料庫,曆史記錄和單詞本的插入和查詢都可以直接操作資料庫
# 不過資料庫需要事先安裝資料庫,并建立相應的表,不好打包,不太友善
word=self.lineEdit.text()
f=open('dict.txt', 'r')
for line in f:
# 對字典檔案的資料進行分析,拆解為适合顯示的格式
l = re.split('[ ]+',line)
if l[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)
# 當地時間
t1=time.localtime()
t2=time.asctime(t1)
#self.lineEdit.setText("")#lineEdit輸入後清零,可要可不要
try:
# 把所查詢單詞插入曆史記錄中，
#'a'以隻寫檔案打開一個檔案，如果有原檔案則追加到檔案末尾
file=open('history.txt', 'at')
msg='%s %s'%(word, t2)
file.write(msg)
file.write('\n')
file.close()
except Exception as e:
print(e)
f.close()
@pyqtSlot()
def on_pushButton_2_clicked(self):
"""
Slot documentation goes here.
"""
try:
# 查詢曆史記錄,把曆史記錄顯示在textBrowser中
file=open('history.txt', 'rt')
list=file.readlines()
msg=''.join(list)
self.textBrowser.setText(msg)
file.close()
except Exception as e:
print(e)
@pyqtSlot()
def on_pushButton_3_clicked(self):
"""
Slot documentation goes here.
"""
try:
# 查詢單詞本,把單詞本顯示在textBrowser中
file=open('words.txt', 'rt')
list=file.readlines()
msg=''.join(list)
self.textBrowser.setText(msg)
file.close()
except Exception as e:
print(e)
@pyqtSlot()
def on_pushButton_4_clicked(self):
"""
Slot documentation goes here.
"""
word=self.lineEdit.text()
try:
# 把所查詢單詞插入單詞本中
file=open('words.txt', 'at')
file.write(word)
file.write('\n')
file.close()
except Exception as e:
print(e)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
# 啟動界面的實作,可以使程式更加炫酷
splash=QtWidgets.QSplashScreen(QPixmap("Saved Pictures/5b517f520feaa.jpg"))
# 啟動界面顯示
splash.show()
# 在啟動界面中顯示程式加載進度，參數意思分别為居中顯示，藍色字型
splash.showMessage('正在加載圖檔資源', Qt.AlignCenter, Qt.blue)
time.sleep(1)
# 為了不與主程式幹擾
app.processEvents()
ui = MainWindow()
ui.show()
# 啟動界面完成
splash.finish(ui)
sys.exit(app.exec_())
第二個程式代碼，主要實作整體的GUI界面的建構（使用Qtdesiner可以極大的簡化工作量，強烈推薦）
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_E_Dictory(object):
def setupUi(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("黑體")
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("黑體")
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("楷體")
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("楷體")
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/Saved Pictures/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)
def retranslateUi(self, E_Dictory):
_translate = QtCore.QCoreApplication.translate
E_Dictory.setWindowTitle(_translate("E_Dictory", "無道詞典"))
self.pushButton.setText(_translate("E_Dictory", "查找"))
# 快捷鍵回車,可以使查找按鈕發生效果
self.pushButton.setShortcut(_translate("E_Dictory", "Return"))
self.label_2.setText(_translate("E_Dictory", "單詞："))
# setHtml樣式表可以按照自己喜好修改
self.textBrowser.setHtml(_translate("E_Dictory", "<!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:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p></body></html>"))
self.label.setText(_translate("E_Dictory", "查詢單詞"))
self.pushButton_2.setText(_translate("E_Dictory", "曆史記錄"))
self.pushButton_3.setText(_translate("E_Dictory", "單詞本"))
self.pushButton_4.setText(_translate("E_Dictory", "添加單詞"))
import dict_rc
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
E_Dictory = QtWidgets.QMainWindow()
ui = Ui_E_Dictory()
ui.setupUi(E_Dictory)
E_Dictory.show()
sys.exit(app.exec_())
textBrowser中的内容可以以html的格式顯示出來，所有其中的檔案的顯示可以按照自己的喜好來設計。
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