Question

我不确定是否需要发布所有内容，但我认为我会将其全部包括在内以防万一。我正在处理的作业使用3个词典和功能，允许用户添加股票，推荐销售，并退出当前我的GetSale或推荐销售功能的问题。 GetSale函数应该找到卖出股票的最大期望值。股票的预期销售价值是当前利润减去股票的未来价值：

Expected Sale value = ( ( Current Price - Buy Price ) - Risk * CurrentPrice ) * Shares

GetSale函数应为投资组合中的每只股票计算此值，并返回具有最高预期销售价值的股票代码。当我在Main函数下使用选项2调用GetSale函数时，我总是得到＆＃34;最畅销股票的利润率为0。＆＃34;即使进入不同的股票。我的GetSale函数是否已经编码，这就是它返回的内容，它甚至没有检查字典我不熟悉它，所以不确定我哪里出错了。

Names = {}
Prices = {}
Exposure = {}

def AddName(StockNames, StockPrices, StockExposure):
    TheStockName = input("Input stock name. ")
    Prompt = "Input the stock symbol for " +  TheStockName
    Symbol = input(Prompt)
    StockNames[Symbol] = TheStockName
    StockPrices[Symbol] = None
    StockExposure[Symbol] = None
    return StockNames

def AddPrices(StockPrices):
    while True:
        Symbol = input("Input stock symbol for the stock and add price next. ")
        if Symbol in Prices:
            Prompt = input("Current buying price of " + Symbol + ": ")
            BuyPrice = float(Prompt)
            Prompt = input("Current selling price of " + Symbol + ": ")
            SellPrice = float(Prompt)
            StockPrices[Symbol] = [BuyPrice, SellPrice]
            return StockPrices
        else:
            print("This stock does not exist.")

def AddExposure(StockExposure):
    while True:
        Symbol = input("Input stock symbol for the stock and add exposure next. ")
        if Symbol in Exposure:
            Prompt = input("Current number of " + Symbol + " stocks that have been purchased? ")
            SharesOwned = float(Prompt)
            Prompt = input("Current risk factor of " + Symbol + " share ownership? ")
            RiskFactor = float(Prompt)
            StockExposure[Symbol] = [SharesOwned, RiskFactor]
            return StockExposure
        else:
            print("This stock does not exist.")

def AddStock():
    AddName(Names, Prices, Exposure)
    AddPrices(Prices)
    AddExposure(Exposure)

def GetSale(Names, Prices, Exposure):    
    HighestStock = 0 
    HighestStockName = ''
    for Stock in Names:            
        TotalProfit = ((Prices[Stock][1] - Prices[Stock][0]) - Exposure[Stock][1] * Prices[Stock]    [0]) *     Exposure[Stock][0]             
        if (TotalProfit > HighestStock):       
            HighestStock = TotalProfit     
            HighestStockName = Stock
    print("Highest selling stock is", HighestStockName, "with a ", HighestStock, "profit margin.")

def Main():
    keepGoing = True
    while keepGoing:
        print("Menu")
        print("1: Add a stock")
        print("2: Find the highest sale price")
        print("3: Exit")
        userResponseString = input("Input selection (1, 2 or 3): ")
        try:
            userInput = int(userResponseString)
        except:
            print("Invalid input.")
            userChoice = 0

        if (userInput == 1):
            AddStock()
        elif (userInput == 2):
            GetSale(Names, Prices, Exposure)
        else:
            (userInput == 3)
            print("Ending stock program.")
            keepGoing = False
Main()

Python股票投资组合计划

0 个答案: