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：
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.translateMainWindow.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"))
正常套餐界面：
from PyQt5 import QtCore, QtWidgetsclass Ui_Normal(object):def setupUi(self, Form):Form.setObjectName("Form")Form.resize(728, 459)self.pushButton = QtWidgets.QPushButton(Form)self.pushButton.setGeometry(QtCore.QRect(40, 190, 93, 41))self.pushButton.setObjectName("pushButton")self.pushButton_2 = QtWidgets.QPushButton(Form)self.pushButton_2.setGeometry(QtCore.QRect(260, 190, 93, 41))self.pushButton_2.setObjectName("pushButton_2")self.pushButton_3 = QtWidgets.QPushButton(Form)self.pushButton_3.setGeometry(QtCore.QRect(480, 190, 93, 41))self.pushButton_3.setObjectName("pushButton_3")self.pushButton_4 = QtWidgets.QPushButton(Form)self.pushButton_4.setGeometry(QtCore.QRect(40, 400, 93, 41))self.pushButton_4.setObjectName("pushButton_4")self.pushButton_5 = QtWidgets.QPushButton(Form)self.pushButton_5.setGeometry(QtCore.QRect(620, 400, 93, 41))self.pushButton_5.setObjectName("pushButton_5")self.pushButton_6 = QtWidgets.QPushButton(Form)self.pushButton_6.setGeometry(QtCore.QRect(260, 400, 93, 41))self.pushButton_6.setObjectName("pushButton_6")self.label = QtWidgets.QLabel(Form)self.label.setGeometry(QtCore.QRect(50, 170, 72, 15))self.label.setObjectName("label")self.label_2 = QtWidgets.QLabel(Form)self.label_2.setGeometry(QtCore.QRect(30, 140, 121, 21))self.label_2.setObjectName("label_2")self.label_3 = QtWidgets.QLabel(Form)self.label_3.setGeometry(QtCore.QRect(30, 10, 121, 111))self.label_3.setObjectName("label_3")self.label_4 = QtWidgets.QLabel(Form)self.label_4.setGeometry(QtCore.QRect(270, 170, 72, 15))self.label_4.setObjectName("label_4")self.label_5 = QtWidgets.QLabel(Form)self.label_5.setGeometry(QtCore.QRect(270, 140, 72, 15))self.label_5.setObjectName("label_5")self.label_6 = QtWidgets.QLabel(Form)self.label_6.setGeometry(QtCore.QRect(240, 10, 131, 111))self.label_6.setObjectName("label_6")self.label_7 = QtWidgets.QLabel(Form)self.label_7.setGeometry(QtCore.QRect(490, 170, 72, 15))self.label_7.setObjectName("label_7")self.label_8 = QtWidgets.QLabel(Form)self.label_8.setGeometry(QtCore.QRect(480, 140, 91, 16))self.label_8.setObjectName("label_8")self.label_9 = QtWidgets.QLabel(Form)self.label_9.setGeometry(QtCore.QRect(460, 10, 131, 111))self.label_9.setObjectName("label_9")self.label_10 = QtWidgets.QLabel(Form)self.label_10.setGeometry(QtCore.QRect(50, 380, 72, 15))self.label_10.setObjectName("label_10")self.label_11 = QtWidgets.QLabel(Form)self.label_11.setGeometry(QtCore.QRect(60, 360, 51, 16))self.label_11.setObjectName("label_11")self.label_12 = QtWidgets.QLabel(Form)self.label_12.setGeometry(QtCore.QRect(30, 250, 121, 101))self.label_12.setObjectName("label_12")self.label_13 = QtWidgets.QLabel(Form)self.label_13.setGeometry(QtCore.QRect(270, 380, 72, 15))self.label_13.setObjectName("label_13")self.label_14 = QtWidgets.QLabel(Form)self.label_14.setGeometry(QtCore.QRect(250, 360, 131, 16))self.label_14.setObjectName("label_14")self.label_15 = QtWidgets.QLabel(Form)self.label_15.setGeometry(QtCore.QRect(240, 250, 131, 101))self.label_15.setObjectName("label_15")self.retranslateUi(Form)QtCore.QMetaObject.connectSlotsByName(Form)def retranslateUi(self, Form):_translate = QtCore.QCoreApplication.translateForm.setWindowTitle(_translate("Form", "Form"))self.pushButton.setText(_translate("Form", "加入订单"))self.pushButton_2.setText(_translate("Form", "加入订单"))self.pushButton_3.setText(_translate("Form", "加入订单"))self.pushButton_4.setText(_translate("Form", "加入订单"))self.pushButton_5.setText(_translate("Form", "返回"))self.pushButton_6.setText(_translate("Form", "加入订单"))self.label.setText(_translate("Form", "钱1"))self.label_2.setText(_translate("Form", "新奥尔良烤鸡腿堡"))self.label_3.setText(_translate("Form", "TextLabel"))self.label_4.setText(_translate("Form", "钱2"))self.label_5.setText(_translate("Form", "香辣鸡翅"))self.label_6.setText(_translate("Form", "TextLabel"))self.label_7.setText(_translate("Form", "钱3"))self.label_8.setText(_translate("Form", "波纹霸王薯条"))self.label_9.setText(_translate("Form", "TextLabel"))self.label_10.setText(_translate("Form", "钱4"))self.label_11.setText(_translate("Form", "乌龙茶"))self.label_12.setText(_translate("Form", "TextLabel"))self.label_13.setText(_translate("Form", "钱5"))self.label_14.setText(_translate("Form", "原味圣代（草莓酱）"))self.label_15.setText(_translate("Form", "TextLabel"))
套餐界面：
from PyQt5 import QtCore, QtWidgetsclass Ui_Package(object):def setupUi(self, Form):Form.setObjectName("Form")Form.resize(728, 393)self.pushButton = QtWidgets.QPushButton(Form)self.pushButton.setGeometry(QtCore.QRect(90, 280, 91, 31))self.pushButton.setObjectName("pushButton")self.pushButton_2 = QtWidgets.QPushButton(Form)self.pushButton_2.setGeometry(QtCore.QRect(340, 280, 93, 31))self.pushButton_2.setObjectName("pushButton_2")self.label = QtWidgets.QLabel(Form)self.label.setGeometry(QtCore.QRect(100, 250, 72, 15))self.label.setObjectName("label")self.label_2 = QtWidgets.QLabel(Form)self.label_2.setGeometry(QtCore.QRect(350, 250, 72, 15))self.label_2.setObjectName("label_2")self.label_3 = QtWidgets.QLabel(Form)self.label_3.setGeometry(QtCore.QRect(80, 220, 131, 21))self.label_3.setObjectName("label_3")self.label_4 = QtWidgets.QLabel(Form)self.label_4.setGeometry(QtCore.QRect(330, 220, 111, 21))self.label_4.setObjectName("label_4")self.label_5 = QtWidgets.QLabel(Form)self.label_5.setGeometry(QtCore.QRect(60, 20, 161, 171))self.label_5.setObjectName("label_5")self.label_6 = QtWidgets.QLabel(Form)self.label_6.setGeometry(QtCore.QRect(300, 20, 171, 171))self.label_6.setObjectName("label_6")self.pushButton_3 = QtWidgets.QPushButton(Form)self.pushButton_3.setGeometry(QtCore.QRect(560, 280, 101, 41))self.pushButton_3.setObjectName("pushButton_3")self.retranslateUi(Form)QtCore.QMetaObject.connectSlotsByName(Form)def retranslateUi(self, Form):_translate = QtCore.QCoreApplication.translateForm.setWindowTitle(_translate("Form", "Form"))self.pushButton.setText(_translate("Form", "加入订单"))self.pushButton_2.setText(_translate("Form", "加入订单"))self.label.setText(_translate("Form", "钱1"))self.label_2.setText(_translate("Form", "钱2"))self.label_3.setText(_translate("Form", "翅桶辣堡奥堡套餐"))self.label_4.setText(_translate("Form", "万圣节日劲堡桶"))self.label_5.setText(_translate("Form", "TextLabel"))self.label_6.setText(_translate("Form", "TextLabel"))self.pushButton_3.setText(_translate("Form", "返回"))
活动界面：
from PyQt5 import QtCore, QtWidgetsclass Ui_Activity(object):def setupUi(self, Form):Form.setObjectName("Form")Form.resize(639, 335)self.pushButton = QtWidgets.QPushButton(Form)self.pushButton.setGeometry(QtCore.QRect(50, 240, 93, 31))self.pushButton.setObjectName("pushButton")self.pushButton_2 = QtWidgets.QPushButton(Form)self.pushButton_2.setGeometry(QtCore.QRect(300, 240, 93, 31))self.pushButton_2.setObjectName("pushButton_2")self.label = QtWidgets.QLabel(Form)self.label.setGeometry(QtCore.QRect(11, 220, 201, 20))self.label.setObjectName("label")self.label_2 = QtWidgets.QLabel(Form)self.label_2.setGeometry(QtCore.QRect(20, 200, 161, 16))self.label_2.setObjectName("label_2")self.label_3 = QtWidgets.QLabel(Form)self.label_3.setGeometry(QtCore.QRect(50, 180, 91, 16))self.label_3.setObjectName("label_3")self.label_4 = QtWidgets.QLabel(Form)self.label_4.setGeometry(QtCore.QRect(30, 30, 141, 141))self.label_4.setObjectName("label_4")self.label_5 = QtWidgets.QLabel(Form)self.label_5.setGeometry(QtCore.QRect(261, 220, 201, 20))self.label_5.setObjectName("label_5")self.label_6 = QtWidgets.QLabel(Form)self.label_6.setGeometry(QtCore.QRect(270, 200, 161, 16))self.label_6.setObjectName("label_6")self.label_7 = QtWidgets.QLabel(Form)self.label_7.setGeometry(QtCore.QRect(310, 180, 61, 16))self.label_7.setObjectName("label_7")self.label_8 = QtWidgets.QLabel(Form)self.label_8.setGeometry(QtCore.QRect(280, 30, 151, 141))self.label_8.setObjectName("label_8")self.pushButton_3 = QtWidgets.QPushButton(Form)self.pushButton_3.setGeometry(QtCore.QRect(490, 250, 101, 31))self.pushButton_3.setObjectName("pushButton_3")self.retranslateUi(Form)QtCore.QMetaObject.connectSlotsByName(Form)def retranslateUi(self, Form):_translate = QtCore.QCoreApplication.translateForm.setWindowTitle(_translate("Form", "Form"))self.pushButton.setText(_translate("Form", "加入订单"))self.pushButton_2.setText(_translate("Form", "加入订单"))self.label.setText(_translate("Form", "钱1"))self.label_2.setText(_translate("Form", "2018.10.1-2018.10.31"))self.label_3.setText(_translate("Form", "葡式蛋挞5只"))self.label_4.setText(_translate("Form", "TextLabel"))self.label_5.setText(_translate("Form", "钱2"))self.label_6.setText(_translate("Form", "2018.11.1-2018.11.11"))self.label_7.setText(_translate("Form", "超级翅桶"))self.label_8.setText(_translate("Form", "TextLabel"))self.pushButton_3.setText(_translate("Form", "返回"))
以下为实现各界面互联和各功能的实现（注释比较详细这里就不多说了）：
# -*- coding: utf-8 -*-# 作者：dcjmessi# 日期：2018/10/19from kfcmain import *from normal import *from package import *from activity import *import sysfrom PyQt5.QtWidgets import *from PyQt5.QtGui import QPixmapclass KFC_Main(QMainWindow):def __init__(self):QMainWindow.__init__(self)self.main_ui = Ui_MainWindow()self.main_ui.setupUi(self)# 给按钮绑定方法btn_del = self.main_ui.pushButton_5btn_del.clicked.connect(self.order_del)btn_num = self.main_ui.pushButton_6btn_num.clicked.connect(self.order_num)self.btn_tip = self.main_ui.pushButton_7self.btn_tip.clicked.connect(self.order_tip)# 设置按钮为当前不可用self.btn_tip.setEnabled(False)# 定义列表self.num = []self.new_num = []# 主界面显示def person(self):# 主界面贴图self.main_ui.label_8.setPixmap(QPixmap('./picture/主界图.png'))# 将图片完全填充self.main_ui.label_8.setScaledContents(True)# 初始化会员储值余额self.balance = 200# 初始化优惠券数量self.coupons = 1# 显示余额和券数量self.main_ui.label_2.setText(str(self.balance))self.main_ui.label_5.setText(str(self.coupons))# 显示主界面kfcmain.show()# 删除tableWidget所选行def order_del(self):# 获取所选行索引row_index = kfcmain.main_ui.tableWidget.currentRow()if row_index != -1:# 删除kfcmain.main_ui.tableWidget.removeRow(row_index)# 结算def order_num(self):# 设置按钮为可用self.btn_tip.setEnabled(True)# 遍历所有行for row_index in range(kfcmain.main_ui.tableWidget.rowCount()):# 将每一行的第三项值添加到num列表里self.num.append(kfcmain.main_ui.tableWidget.item(row_index, 2).text())# 将num中的字符转换成int型self.new_num = eval('[' + (','.join(self.num)) + ']')# 将new_num列表值求和self.money = sum(self.new_num)# 有优惠券时if self.coupons >= 1:# 消息提示框button = QMessageBox.information(self, "温馨提示", "是否使用优惠券", QMessageBox.Yes | QMessageBox.No)# 使用优惠券if button == QMessageBox.Yes:# 当前优惠券数量减一self.coupons = self.coupons -1self.main_ui.label_5.setText(str(self.coupons))# 余额足够if self.balance >= (self.money - self.coupons * 20):QMessageBox.information(self, "恭喜您", "付款成功！", QMessageBox.Yes)self.balance = self.balance - self.money - self.coupons * 20self.main_ui.label_2.setText(str(self.balance))else:QMessageBox.information(self, "对不起", "您的会员储值卡余额不足！", QMessageBox.Yes)# 不使用优惠券else:if self.balance >= self.money:QMessageBox.information(self, "恭喜您", "付款成功！", QMessageBox.Yes)self.balance = self.balance - self.moneyself.main_ui.label_2.setText(str(self.balance))else:QMessageBox.information(self, "对不起", "您的会员储值卡余额不足！", QMessageBox.Yes)# 没有优惠券时else:if self.balance >= self.money:QMessageBox.information(self, "恭喜您", "付款成功！", QMessageBox.Yes)self.balance = self.balance - self.moneyself.main_ui.label_2.setText(str(self.balance))else:QMessageBox.information(self, "对不起", "您的会员储值卡余额不足！", QMessageBox.Yes)# 打印小票def order_tip(self):# 打开本地txt文件with open("kfctip.txt", "w") as f:# 遍历行for row_index in range(kfcmain.main_ui.tableWidget.rowCount()):# 遍历列for column_index in range(kfcmain.main_ui.tableWidget.columnCount()):# 将tableWidget数据写入文件f.write(kfcmain.main_ui.tableWidget.item(row_index, column_index).text() + "\n")f.write("合计：" + str(self.money) + "元")f.close()class Normal(QWidget):def __init__(self):QWidget.__init__(self)self.normal_ui = Ui_Normal()self.normal_ui.setupUi(self)# 初始化各基本餐加入订单按钮点击次数self.bt1 = 0self.bt2 = 0self.bt3 = 0self.bt4 = 0self.bt6 = 0# 初始化返回按钮点击次数self.bt5 = 0# 按钮绑定方法btn_hamburg = self.normal_ui.pushButtonbtn_hamburg.clicked.connect(self.order_hamburg)btn_chicken = self.normal_ui.pushButton_2btn_chicken.clicked.connect(self.order_chicken)btn_fries = self.normal_ui.pushButton_3btn_fries.clicked.connect(self.order_fries)btn_tea = self.normal_ui.pushButton_4btn_tea.clicked.connect(self.order_tea)btn_ice = self.normal_ui.pushButton_6btn_ice.clicked.connect(self.order_ice)btn_return = self.normal_ui.pushButton_5btn_return.clicked.connect(self.nor_show)# 显示基本餐界面def nor_order(self):self.normal_ui.label_3.setPixmap(QPixmap('./picture/新奥尔良.png'))self.normal_ui.label_3.setScaledContents(True)self.normal_ui.label_6.setPixmap(QPixmap('./picture/鸡翅.png'))self.normal_ui.label_6.setScaledContents(True)self.normal_ui.label_9.setPixmap(QPixmap('./picture/薯条.png'))self.normal_ui.label_9.setScaledContents(True)self.normal_ui.label_12.setPixmap(QPixmap('./picture/乌龙茶.png'))self.normal_ui.label_12.setScaledContents(True)self.normal_ui.label_15.setPixmap(QPixmap('./picture/冰淇淋.png'))self.normal_ui.label_15.setScaledContents(True)# 基本餐价格self.price_hamburg = 18.5self.price_chicken = 11.0self.price_fries = 13.0self.price_tea = 13.5self.price_ice = 10.0# 显示价格self.normal_ui.label.setText(str(self.price_hamburg)+"元/份")self.normal_ui.label_4.setText(str(self.price_chicken)+"元/份")self.normal_ui.label_7.setText(str(self.price_fries)+"元/份")self.normal_ui.label_10.setText(str(self.price_tea)+"元/份")self.normal_ui.label_13.setText(str(self.price_ice)+"元/份")normal.show()# 计算点击次数def order_hamburg(self):self.bt1 += 1def order_chicken(self):self.bt2 += 1def order_fries(self):self.bt3 += 1def order_tea(self):self.bt4 += 1def order_ice(self):self.bt6 += 1def nor_show(self):self.bt5 += 1# 隐藏界面normal.hide()# 获取所选各基本餐的数量对应的价格self.num_hamburg = self.price_hamburg * self.bt1self.num_chicken = self.price_chicken * self.bt2self.num_fries = self.price_fries * self.bt3self.num_tea = self.price_tea * self.bt4self.num_ice = self.price_ice * self.bt6# 不是第一次进入该界面if self.bt5 > 1:for row_index in range(kfcmain.main_ui.tableWidget.rowCount()):# 获取tableWidget的所有名称，并放入name列表name.append(kfcmain.main_ui.tableWidget.item(row_index, 0).text())if '新奥尔良烤鸡腿堡' in name:# 重新设置该行的数量和价格kfcmain.main_ui.tableWidget.setItem(name.index('新奥尔良烤鸡腿堡'), 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(name.index('新奥尔良烤鸡腿堡'), 2, QTableWidgetItem(str(self.num_hamburg)))if '新奥尔良烤鸡腿堡' not in name:# 已选择if self.bt1 != 0:# 添加一行数据row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_2.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_hamburg)))if '香辣鸡翅' in name:kfcmain.main_ui.tableWidget.setItem(name.index('香辣鸡翅'), 1, QTableWidgetItem("×" + str(self.bt2)))kfcmain.main_ui.tableWidget.setItem(name.index('香辣鸡翅'), 2, QTableWidgetItem(str(self.num_chicken)))if '香辣鸡翅' not in name:if self.bt2 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_5.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt2)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_chicken)))if '波纹霸王薯条' in name:kfcmain.main_ui.tableWidget.setItem(name.index('波纹霸王薯条'), 1, QTableWidgetItem("×" + str(self.bt3)))kfcmain.main_ui.tableWidget.setItem(name.index('波纹霸王薯条'), 2, QTableWidgetItem(str(self.num_fries)))if '波纹霸王薯条' not in name:if self.bt3 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_8.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt3)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_fries)))if '乌龙茶'in name:kfcmain.main_ui.tableWidget.setItem(name.index('乌龙茶'), 1, QTableWidgetItem("×" + str(self.bt4)))kfcmain.main_ui.tableWidget.setItem(name.index('乌龙茶'), 2, QTableWidgetItem(str(self.num_tea)))if '乌龙茶' not in name:if self.bt4 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_11.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt4)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_tea)))if '原味圣代（草莓酱）' in name:kfcmain.main_ui.tableWidget.setItem(name.index('原味圣代（草莓酱）'), 1, QTableWidgetItem("×" + str(self.bt6)))kfcmain.main_ui.tableWidget.setItem(name.index('原味圣代（草莓酱）'), 2, QTableWidgetItem(str(self.num_ice)))if '原味圣代（草莓酱）' not in name:if self.bt6 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_14.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt6)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_ice)))# 第一次进入该界面else:if self.bt1 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_2.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_hamburg)))if self.bt2 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_5.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt2)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_chicken)))if self.bt3 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_8.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt3)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_fries)))if self.bt4 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_11.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt4)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_tea)))if self.bt6 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(normal.normal_ui.label_14.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt6)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_ice)))class Package(QWidget):def __init__(self):QWidget.__init__(self)self.package_ui = Ui_Package()self.package_ui.setupUi(self)# 初始化各套餐加入订单按钮点击次数self.bt1 = 0self.bt2 = 0# 初始化返回按钮点击次数self.bt3 = 0# 按钮绑定方法btn_pack1 = self.package_ui.pushButtonbtn_pack1.clicked.connect(self.order_pack1)btn_pack2 = self.package_ui.pushButton_2btn_pack2.clicked.connect(self.order_pack2)btn_return = self.package_ui.pushButton_3btn_return.clicked.connect(self.pac_show)# 显示套餐界面def pac_order(self):self.package_ui.label_5.setPixmap(QPixmap('./picture/套餐2.png'))self.package_ui.label_5.setScaledContents(True)self.package_ui.label_6.setPixmap(QPixmap('./picture/套餐1.png'))self.package_ui.label_6.setScaledContents(True)# 套餐价格self.price_pack1 = 89.0self.price_pack2 = 67.0self.package_ui.label.setText(str(self.price_pack1)+"元/份")self.package_ui.label_2.setText(str(self.price_pack2)+"元/份")package.show()def order_pack1(self):self.bt1 += 1def order_pack2(self):self.bt2 += 1def pac_show(self):self.bt3 += 1package.hide()self.num_pack1 = self.price_pack1 * self.bt1self.num_pack2 = self.price_pack2 * self.bt2if self.bt3 > 1:for row_index in range(kfcmain.main_ui.tableWidget.rowCount()):name.append(kfcmain.main_ui.tableWidget.item(row_index, 0).text())if '翅桶辣堡奥堡套餐' in name:kfcmain.main_ui.tableWidget.setItem(name.index('翅桶辣堡奥堡套餐'), 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(name.index('翅桶辣堡奥堡套餐'), 2, QTableWidgetItem(str(self.num_pack1)))if '翅桶辣堡奥堡套餐' not in name:if self.bt1 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(package.package_ui.label_3.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_pack1)))if '万圣节日劲堡桶' in name:kfcmain.main_ui.tableWidget.setItem(name.index('万圣节日劲堡桶'), 1, QTableWidgetItem("×" + str(self.bt2)))kfcmain.main_ui.tableWidget.setItem(name.index('万圣节日劲堡桶'), 2, QTableWidgetItem(str(self.num_pack2)))if '万圣节日劲堡桶' not in name:if self.bt2 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(package.package_ui.label_4.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt2)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_pack2)))else:if self.bt1 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(package.package_ui.label_3.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_pack1)))if self.bt2 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(package.package_ui.label_4.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt2)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_pack2)))class Activity(QWidget):def __init__(self):QWidget.__init__(self)self.activity_ui = Ui_Activity()self.activity_ui.setupUi(self)# 初始化各活动加入订单按钮点击次数self.bt1 = 0# 初始化返回按钮点击次数self.bt3 = 0# 绑定方法btn_act1 = self.activity_ui.pushButtonbtn_act1.clicked.connect(self.order_act1)btn_act2 = self.activity_ui.pushButton_2btn_act2.clicked.connect(self.order_act2)btn_return = self.activity_ui.pushButton_3btn_return.clicked.connect(self.act_show)def act_order(self):self.activity_ui.label_4.setPixmap(QPixmap('./picture/活动1.png'))self.activity_ui.label_4.setScaledContents(True)self.activity_ui.label_8.setPixmap(QPixmap('./picture/活动2.png'))self.activity_ui.label_8.setScaledContents(True)# 活动价格self.price_act1 = 29.0self.price_act2 = 69.0self.activity_ui.label.setText(str(self.price_act1) + "元/份 原价:"+str(self.price_act1 + 7) + "元/份")self.activity_ui.label_5.setText(str(self.price_act2) + "元/份 原价:"+str(self.price_act2 + 10) + "元/份")activity.show()def order_act1(self):self.bt1 += 1def order_act2(self):QMessageBox.information(self, "对不起", "活动还没有开始，敬请期待！", QMessageBox.Yes)def act_show(self):self.bt3 += 1activity.hide()self.num_act1 = self.price_act1 * self.bt1if self.bt3 > 1:for row_index in range(kfcmain.main_ui.tableWidget.rowCount()):name.append(kfcmain.main_ui.tableWidget.item(row_index, 0).text())if '葡式蛋挞5只' in name:kfcmain.main_ui.tableWidget.setItem(name.index('葡式蛋挞5只'), 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(name.index('葡式蛋挞5只'), 2, QTableWidgetItem(str(self.num_act1)))if '葡式蛋挞5只' not in name:if self.bt1 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(activity.activity_ui.label_3.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_act1)))else:if self.bt1 != 0:row_count = kfcmain.main_ui.tableWidget.rowCount()kfcmain.main_ui.tableWidget.insertRow(row_count)kfcmain.main_ui.tableWidget.setItem(row_count, 0, QTableWidgetItem(activity.activity_ui.label_3.text()))kfcmain.main_ui.tableWidget.setItem(row_count, 1, QTableWidgetItem("×" + str(self.bt1)))kfcmain.main_ui.tableWidget.setItem(row_count, 2, QTableWidgetItem(str(self.num_act1)))if __name__=="__main__":app = QApplication(sys.argv)kfcmain = KFC_Main()normal = Normal()package = Package()activity = Activity()# 显示主界面kfcmain.person()# 绑定按钮btn_normal = kfcmain.main_ui.pushButton_2btn_normal.clicked.connect(normal.nor_order)btn_package = kfcmain.main_ui.pushButton_3btn_package.clicked.connect(package.pac_order)btn_activity = kfcmain.main_ui.pushButton_4btn_activity.clicked.connect(activity.act_order)# 初始化name列表name = []sys.exit(app.exec_())