首页
所有分类
TAGS
文字工具 EMOJI BIBLE
编程 Python

python+pyqt5实现KFC点餐收银系统

Posted in Python onJanuary 24, 2019

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?还郝虿推方崴愫驼伊恪?br /> 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：

python+pyqt5实现KFC点餐收银系统

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：

python+pyqt5实现KFC点餐收银系统

正常餐品点餐界面：

python+pyqt5实现KFC点餐收银系统

套餐点餐界面：

python+pyqt5实现KFC点餐收银系统

活动套餐点餐界面：

python+pyqt5实现KFC点餐收银系统

当点击第二个活动套餐时：

python+pyqt5实现KFC点餐收银系统

加入订单点击返回后主界面会生成订单信息：

python+pyqt5实现KFC点餐收银系统

点击结算：

python+pyqt5实现KFC点餐收银系统
python+pyqt5实现KFC点餐收银系统
python+pyqt5实现KFC点餐收银系统

打印小票到文件：

python+pyqt5实现KFC点餐收银系统

以下是代码实现：

界面布局均使用pyqt5

主界面布局：

from PyQt5 import QtCore, QtWidgets

class 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"))

正常套餐界面：

from PyQt5 import QtCore, QtWidgets

class 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.translate
 Form.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, QtWidgets

class 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.translate
 Form.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, QtWidgets

class 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.translate
 Form.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：2018/10/19


from kfcmain import *
from normal import *
from package import *
from activity import *
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import QPixmap

class 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_5
 btn_del.clicked.connect(self.order_del)
 btn_num = self.main_ui.pushButton_6
 btn_num.clicked.connect(self.order_num)
 self.btn_tip = self.main_ui.pushButton_7
 self.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 -1
  self.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 * 20
   self.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.money
   self.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.money
  self.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 = 0
 self.bt2 = 0
 self.bt3 = 0
 self.bt4 = 0
 self.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.pushButton
 btn_hamburg.clicked.connect(self.order_hamburg)
 btn_chicken = self.normal_ui.pushButton_2
 btn_chicken.clicked.connect(self.order_chicken)
 btn_fries = self.normal_ui.pushButton_3
 btn_fries.clicked.connect(self.order_fries)
 btn_tea = self.normal_ui.pushButton_4
 btn_tea.clicked.connect(self.order_tea)
 btn_ice = self.normal_ui.pushButton_6
 btn_ice.clicked.connect(self.order_ice)
 btn_return = self.normal_ui.pushButton_5
 btn_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 = 18.5
 self.price_chicken = 11.0
 self.price_fries = 13.0
 self.price_tea = 13.5
 self.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 += 1

 def order_chicken(self):
 self.bt2 += 1

 def order_fries(self):
 self.bt3 += 1

 def order_tea(self):
 self.bt4 += 1

 def order_ice(self):
 self.bt6 += 1

 def 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.bt1
 self.num_chicken = self.price_chicken * self.bt2
 self.num_fries = self.price_fries * self.bt3
 self.num_tea = self.price_tea * self.bt4
 self.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 = 0
 self.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.pushButton
 btn_pack1.clicked.connect(self.order_pack1)
 btn_pack2 = self.package_ui.pushButton_2
 btn_pack2.clicked.connect(self.order_pack2)
 btn_return = self.package_ui.pushButton_3
 btn_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 = 89.0
 self.price_pack2 = 67.0
 self.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 += 1

 def order_pack2(self):
 self.bt2 += 1

 def pac_show(self):
 self.bt3 += 1

 package.hide()

 self.num_pack1 = self.price_pack1 * self.bt1
 self.num_pack2 = self.price_pack2 * self.bt2

 if 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.pushButton
 btn_act1.clicked.connect(self.order_act1)
 btn_act2 = self.activity_ui.pushButton_2
 btn_act2.clicked.connect(self.order_act2)
 btn_return = self.activity_ui.pushButton_3
 btn_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 = 29.0
 self.price_act2 = 69.0
 self.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 += 1

 def 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 += 1

 activity.hide()

 self.num_act1 = self.price_act1 * self.bt1

 if 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_2
 btn_normal.clicked.connect(normal.nor_order)
 btn_package = kfcmain.main_ui.pushButton_3
 btn_package.clicked.connect(package.pac_order)
 btn_activity = kfcmain.main_ui.pushButton_4
 btn_activity.clicked.connect(activity.act_order)
 # 初始化name列表
 name = []

 sys.exit(app.exec_())

删除只实现了同餐品在订单上的删除，没有实现数量的减少，可自行添加。

更多学习资料请关注专题《管理系统开发》。

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三水点靠木。

python+pyqt5实现KFC点餐收银系统

- Author -

dcjmessi

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

Python 相关文章推荐
python获得文件创建时间和修改时间的方法
Jun 30 Python
python利用OpenCV2实现人脸检测
Apr 16 Python
python tools实现视频的每一帧提取并保存
Mar 20 Python
Python中的支持向量机SVM的使用（附实例代码）
Jun 26 Python
python读写csv文件方法详细总结
Jul 05 Python
python3 批量获取对应端口服务的实例
Jul 25 Python
python 直接赋值和copy的区别详解
Aug 07 Python
Python中最好用的命令行参数解析工具(argparse)
Aug 23 Python
python自动发微信监控报警
Sep 06 Python
Python PyInstaller库基本使用方法分析
Dec 12 Python
如何让python的运行速度得到提升
Jul 08 Python
详解修改Anaconda中的Jupyter Notebook默认工作路径的三种方式
Jan 24 Python
Python微医挂号网医生数据抓取
Jan 24 #Python
Python实现查找二叉搜索树第k大的节点功能示例
Jan 24 #Python
几行Python代码爬取3000+上市公司的信息
Jan 24 #Python
python安装pywin32clipboard的操作方法
Jan 24 #Python
Python中extend和append的区别讲解
Jan 24 #Python
对python pandas读取剪贴板内容的方法详解
Jan 24 #Python
Python3按一定数据位数格式处理bin文件的方法
Jan 24 #Python
表扬信(62) 辞职信(98) 事迹材料(636) 教学反思(909) 邀请函(127) 广播稿(323) 介绍信(57) 检讨书(456) 欢迎词(65) 道歉信(39)
You might like
php empty函数 使用说明
2009/08/10 PHP
php中将一个对象保存到Session中的方法
2015/03/13 PHP
实现PHP框架系列文章(6)mysql数据库方法
2016/03/04 PHP
Yii2框架中使用PHPExcel导出Excel文件的示例
2017/08/09 PHP
php DES加密算法实例分析
2019/09/18 PHP
添加到收藏夹代码（兼容几乎所有的浏览器）
2007/01/09 Javascript
javaScript NameSpace 简单说明介绍
2013/07/18 Javascript
从jquery的过滤器.filter()方法想到的
2013/09/29 Javascript
javascript比较两个日期相差天数的方法
2015/07/23 Javascript
移动手机APP手指滑动切换图片特效附源码下载
2015/11/30 Javascript
js如何改变文章的字体大小
2016/01/08 Javascript
Bootstrap中的fileinput 多图片上传及编辑功能
2016/09/05 Javascript
AngularJS实现用户登录状态判断的方法(Model添加拦截过滤器,路由增加限制)
2016/12/12 Javascript
Angular实现购物车计算示例代码
2017/02/21 Javascript
详解JS异步加载的三种方式
2017/03/07 Javascript
js时间戳与日期格式之间相互转换
2017/12/11 Javascript
JS中用EL表达式获取上下文参数值的方法
2018/03/28 Javascript
详解React中setState回调函数
2018/06/14 Javascript
详解如何用VUE写一个多用模态框组件模版
2018/09/27 Javascript
layui动态绑定事件的方法
2019/09/20 Javascript
简单了解JavaScript弹窗实现代码
2020/05/07 Javascript
如何基于viewport vm适配移动端页面
2020/11/13 Javascript
[04:30]显微镜下的DOTA2第五期——拉比克
2013/09/26 DOTA
[02:07]DOTA2超级联赛专访BBC：难忘网吧超神经历
2013/06/09 DOTA
[02:45]DOTA2英雄基础教程 伐木机
2013/12/23 DOTA
python 数据加密代码
2008/12/24 Python
python实现分析apache和nginx日志文件并输出访客ip列表的方法
2015/04/04 Python
python得到qq句柄,并显示在前台的方法
2018/10/14 Python
快速解决pyqt5窗体关闭后子线程不同时退出的问题
2019/06/19 Python
python3 下载网络图片代码实例
2019/08/27 Python
python 异步async库的使用说明
2020/05/04 Python
基于python实现ROC曲线绘制广场解析
2020/06/28 Python
真正的英国宝藏：Mappin & Webb
2019/05/05 全球购物
GetYourGuide台湾：预订旅游活动、景点和旅游项目
2019/06/10 全球购物
MYSQL(电话号码,身份证)数据脱敏的实现
2021/05/28 MySQL
CSS使用Flex和Grid布局实现3D骰子
2022/08/05 HTML / CSS