Python之点餐系统

点餐系统

代码如下

import time
DrinkMenu = {1:"豆浆", 2:"果汁", 3:"牛奶"}
FoodMenu = {1:"馒头", 2:"包子", 3:"鸡蛋", 4:"油条"}
OrderList = [] # 存放当天所有顾客下单信息

def getCharge(drinkNo,foodNo):
    # 计算费用函数
    drinkCharge = 0.0
    foodCharge = 0.0
    if drinkNo == 1:
        drinkCharge = 3.0
    elif drinkNo == 2:
        drinkCharge = 4.5
    elif drinkNo == 3:
        drinkCharge = 4.0
    if foodNo == 1:
        foodCharge = 1.0
    elif foodNo == 2:
        foodCharge = 2.5
    elif foodNo == 3:
        foodCharge = 2.0
    elif foodNo == 4:
        foodCharge = 1.5
    return drinkCharge + foodCharge

def orderMenu():
    print("\n-----欢迎点餐------")
    # 饮料
    print("我们提供的饮品：")
    for drink in DrinkMenu:
        print(str(drink)+":"+DrinkMenu[drink])
    drinkNo = int(input("请输入序号选择您需要的饮品(1~3)："))
    print(drinkNo)
    while drinkNo > 3:
        drinkNo = int(input("输入错误。请输入序号选择您需要的饮品(1~3)："))
    print("您选择了: " + DrinkMenu[drinkNo] + "\n")
    # 主食
    print("我们提供的食物: ")
    for food in FoodMenu:
        print(str(food) + ": " + FoodMenu[food])
    foodNo = int(input("请输入序号选择您需要的食物(1~4): "))
    while foodNo > 4:
        foodNo = int(input("输入错误。请输入序号选择您需要的食物(1~4): "))
    print("您选择了: " + FoodMenu[foodNo] + "\n")
    # 计算费用
    totalPrice = getCharge(drinkNo, foodNo)
    print("将马上为您奉上%s和%s，共消费%.2f元。" % (DrinkMenu[drinkNo], FoodMenu[foodNo], totalPrice))
    # 获取时间
    import time
    OrderDate = time.strftime('%Y-%m-%d', time.localtime(time.time()))
    OrderTime = time.strftime('%H:%M:%S', time.localtime(time.time()))
    # 将所有信息添加到OrderList
    OrderList.append([OrderDate, OrderTime, DrinkMenu[drinkNo], FoodMenu[foodNo], totalPrice])

def printReport(OrderList):
    totalPrice = 0
    print("\n--------------------- 统计报表 ---------------------\n")
    print("点餐日期\t\t点餐时间\t\t饮料\t主食\t花费(元)")
    for order in OrderList:
        totalPrice += order[4]
        print(order[0] + "\t" + order[1] + "\t%s\t%s\t%.2f" % (order[2], order[3], order[4]))
    print("\n累计收入 %.2f 元。" % totalPrice)

def exportReport(OrderList):
    dataFile = open("AllReport.txt", "w", encoding="utf-8")
    for order in OrderList:
        dataFile.write(order[0] + "\t" + order[1] + "\t%s\t%s\t%.2f元\n" % (order[2], order[3], order[4]))
    dataFile.close()
    print("---- 成功导出报表。 ----")

# 入口程序
while(True):
    print("\n----------欢迎使用点餐系统----------")
    print("本软件提供如下功能: \n 1. 点餐\n 2. 打印报表\n 3. 存储报表\n 4. 退出系统")
    choice=int(input("请输入数字选择一项功能："))
    if choice == 1:
        print("点餐")
        orderMenu()
    elif choice == 2:
        print("打印报表")
        printReport(OrderList)
    elif choice == 3:
        print("存储报表")
        exportReport(OrderList)
    elif choice == 4:
        exit(0)
    else:
        print("请输入正确的序号(1~4)。")