如何在列表中沒有更高的股票時添加「noHigherStocks」功能？

Question

我試圖創建一個具有4個功能的程序，getStocks，searchStocks，printStocks，然後是使用其他三個函數的主函數。 我的問題是，我想這樣做，以便如果您搜索的股票是最高股票，我希望消息「沒有更高的股票」作爲輸出而不是空白空間出現，但我不確定什麼和我需要添加這樣做。我將「noHigherStocks」變量作爲我想要顯示的消息，但是我要在哪裏實現它？我覺得好像我應該在主函數中使用else語句，但我想不出在何處放置它是有意義的。謝謝閱讀！任何幫助或建議將不勝感激:-)

def getStocks(): 
    stockNames = [] 
    stockPrices = [] 
    name = str(input("What is the name of the stock?")) 
    price = int(input("what is the price of that stock?")) 
    while name != 'done': 
     stockNames.append(name) 
     stockPrices.append(price) 
     name = str(input("What is the name of the stock?")) 
     if name != 'done': 
      price = int(input("what is the price of that stock?")) 

    return (stockNames, stockPrices) 


# returns a single value pertaining to the found price  
def searchStocks(stockNames, stockPrices, s): 
    for i in range (len(stockNames)): 
     if stockNames[i] == s: 
      return stockPrices[i] 
    return -1 

# print the names of stocks whose price is higher than p. 
def printStock(stockNames, stockPrices, p): 
    i = 0 
    while i <len(stockPrices): 
     if p < stockPrices[i]: 
      print(stockNames[i]) 
     i = i + 1 
    return 



def main(): 
    n,p = getStocks() 
    stock = str(input("what stock are you searching for?")) 
    price = searchStocks(n,p,stock) 
    printStock(n,p,price) 
    noStocksHigher = str('There are no stocks higher than',stock) 

main() 

Answer 1

這可能使用max（）內置解決。既然您已經知道您搜索的股票的價格，您可以將該價格與p中的最高價格進行比較，如果相等，則打印您的消息，否則搜索該列表。

開始，你叫searchStocks：

price = searchStocks(n,p,stock) 

if max(p) == price: 

    print('There are no stocks higher than',stock) 
else: 

    printStock(n,p,price) 

這應該做的伎倆。