怎么在python中使用pyqt5实现一个点餐收银系统-创新互联
本篇文章给大家分享的是有关怎么在python中使用pyqt5实现一个点餐收银系统，小编觉得挺实用的，因此分享给大家学习，希望大家阅读完这篇文章后可以有所收获，话不多说，跟着小编一起来看看吧。
python是什么意思
Python是一种跨平台的、具有解释性、编译性、互动性和面向对象的脚本语言，其最初的设计是用于编写自动化脚本，随着版本的不断更新和新功能的添加，常用于用于开发独立的项目和大型项目。
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_())以上就是怎么在python中使用pyqt5实现一个点餐收银系统，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注创新互联成都网站设计公司行业资讯频道。
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本文题目：怎么在python中使用pyqt5实现一个点餐收银系统-创新互联
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