python+pyqt5实现KFC点餐收银系统

本文实例为大家分享了python实现KFC点餐收银系统的具体代码，供大家参考，具体内容如下

这个kfc收银系统我实现了的以下功能：

1.正常餐品结算和找零。
2.基本套餐结算和找零。
3.使用优惠劵购买餐品结算和找零。
4.可在一定时间段参与店内活动
5.模拟打印小票的功能（写到文件中）。

工程文件：

肯德基.py文件实现各功能、kfctip.txt文件用于打印小票、picture文件里存放界面所需的图片、其他四个文件为各界面布局。

主界面：

正常餐品点餐界面：

套餐点餐界面：

活动套餐点餐界面：

当点击第二个活动套餐时：

加入订单点击返回后主界面会生成订单信息：

点击结算：

打印小票到文件：

以下是代码实现：

界面布局均使用pyqt5

主界面布局：

from PyQt5 import QtCore, QtWidgetsclass Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(893, 489) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_2.setGeometry(QtCore.QRect(510, 20, 101, 41)) self.pushButton_2.setObjectName("pushButton_2") self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_3.setGeometry(QtCore.QRect(510, 80, 101, 41)) self.pushButton_3.setObjectName("pushButton_3") self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_4.setGeometry(QtCore.QRect(510, 140, 101, 41)) self.pushButton_4.setObjectName("pushButton_4") self.label = QtWidgets.QLabel(self.centralwidget) self.label.setGeometry(QtCore.QRect(510, 200, 111, 21)) self.label.setObjectName("label") self.label_2 = QtWidgets.QLabel(self.centralwidget) self.label_2.setGeometry(QtCore.QRect(510, 230, 72, 15)) self.label_2.setObjectName("label_2") self.label_3 = QtWidgets.QLabel(self.centralwidget) self.label_3.setGeometry(QtCore.QRect(590, 230, 21, 16)) self.label_3.setObjectName("label_3") self.label_4 = QtWidgets.QLabel(self.centralwidget) self.label_4.setGeometry(QtCore.QRect(510, 260, 81, 21)) self.label_4.setObjectName("label_4") self.label_5 = QtWidgets.QLabel(self.centralwidget) self.label_5.setGeometry(QtCore.QRect(510, 290, 72, 15)) self.label_5.setObjectName("label_5") self.label_6 = QtWidgets.QLabel(self.centralwidget) self.label_6.setGeometry(QtCore.QRect(590, 290, 21, 16)) self.label_6.setObjectName("label_6") self.label_7 = QtWidgets.QLabel(self.centralwidget) self.label_7.setGeometry(QtCore.QRect(640, 20, 61, 21)) self.label_7.setObjectName("label_7") self.tableWidget = QtWidgets.QTableWidget(self.centralwidget) self.tableWidget.setGeometry(QtCore.QRect(640, 40, 241, 231)) self.tableWidget.setObjectName("tableWidget") self.tableWidget.setColumnCount(3) self.tableWidget.setRowCount(0) item = QtWidgets.QTableWidgetItem() self.tableWidget.setHorizontalHeaderItem(0, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setHorizontalHeaderItem(1, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setHorizontalHeaderItem(2, item) self.tableWidget.horizontalHeader().setDefaultSectionSize(70) self.pushButton_5 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_5.setGeometry(QtCore.QRect(640, 290, 71, 31)) self.pushButton_5.setObjectName("pushButton_5") self.pushButton_6 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_6.setGeometry(QtCore.QRect(640, 350, 91, 31)) self.pushButton_6.setObjectName("pushButton_6") self.pushButton_7 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_7.setGeometry(QtCore.QRect(750, 350, 91, 31)) self.pushButton_7.setObjectName("pushButton_7") self.label_8 = QtWidgets.QLabel(self.centralwidget) self.label_8.setGeometry(QtCore.QRect(10, 10, 481, 431)) self.label_8.setObjectName("label_8") MainWindow.setCentralWidget(self.centralwidget) self.menubar = QtWidgets.QMenuBar(MainWindow) self.menubar.setGeometry(QtCore.QRect(0, 0, 893, 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", "肯德基")) self.pushButton_2.setText(_translate("MainWindow", "基本餐")) self.pushButton_3.setText(_translate("MainWindow", "套餐")) self.pushButton_4.setText(_translate("MainWindow", "活动")) self.label.setText(_translate("MainWindow", "会员储值卡余额")) self.label_2.setText(_translate("MainWindow", "钱")) self.label_3.setText(_translate("MainWindow", "元")) self.label_4.setText(_translate("MainWindow", "您的优惠券")) self.label_5.setText(_translate("MainWindow", "券")) self.label_6.setText(_translate("MainWindow", "张")) self.label_7.setText(_translate("MainWindow", "您的订单")) item = self.tableWidget.horizontalHeaderItem(0) item.setText(_translate("MainWindow", "名称")) item = self.tableWidget.horizontalHeaderItem(1) item.setText(_translate("MainWindow", "数量")) item = self.tableWidget.horizontalHeaderItem(2) item.setText(_translate("MainWindow", "价格/元")) self.pushButton_5.setText(_translate("MainWindow", "删除")) self.pushButton_6.setText(_translate("MainWindow", "结算")) self.pushButton_7.setText(_translate("MainWindow", "打印小票")) self.label_8.setText(_translate("MainWindow", "图"))