计算利润/亏损总额

Question

该程序从初始余额开始，个人账面余额必须与初始余额匹配才能继续进行。然后，用户输入当天的选择以及赌注、赔率等，然后程序用新的账簿余额计算新的余额。

def main():
    def balances(msg):
        while True:
                    try:
                        x = float(raw_input(msg))
                        return x
                    except ValueError:
                        print"That's not a number"
                        continue

    while True:
        balance = balances('Balance:')
        print
        bfair_balance = balances('bfair:')
        wh_balance = balances('wh:')
        freds_balance = balances('freds:')
        sky_balance = balances('sky:')
        pp_balance = balances('pp:')
        balance_sum = pp_balance + bfair_balance + sky_balance + freds_balance + wh_balance
        if balance == balance_sum:
        # balance is correct -> stop the loop
            break
        else:
            print "Balances do not match"
    print

    print "Balance: %s" %balance
    print "Bfair: %d, Sky: %d, pp: %d, freds: %d, wh: %d" %(bfair_balance, sky_balance, pp_balance, freds_balance, wh_balance)

    books = [bfair_balance, wh_balance, sky_balance,freds_balance,pp_balance]
    #print books




    print


    inputs = []
    new_books = []


    def looks_good(inputs):
                for i in inputs:
                    print i

    while True:

        add_selection =raw_input("Would you like to add a selection? ")
        if add_selection == "Yes":
            print
            selection = raw_input('Horse: ')

            stake = float(raw_input('Stake: '))
            while stake <=0:
                print "Please enter a stake greater than 0"
                stake = float(raw_input('Stake: '))
            while stake > bfair_balance:
                print "You do not have sufficient funds"
                stake = float(raw_input('Stake: '))
            while stake > pp_balance:
                 print "You do not have sufficient funds"
                 stake = float(raw_input('Stake: '))
            while stake > freds_balance:
                 print "You do not have sufficient funds"
                 stake = float(raw_input('Stake: '))
            while stake > sky_balance:
                 print "You do not have sufficient funds"
                 stake = float(raw_input('Stake: '))
            while stake > wh_balance:
                 print "You do not have sufficient funds"
                 stake = float(raw_input('Stake: '))


            odds = float(raw_input('Odds: '))
            while odds <=0:
                print "Please enter odds greater than 0"
                odds = float(raw_input('Odds: '))

            result = (raw_input('Result: '))
            if result == "Win":
                result = stake * odds
                print "Returns:%d"%result
            elif result == "Lose":
                result = 0 * odds
                print "Returns:%d"%result

            book = raw_input('Book: ')

            while book not in['bfair','sky','wh','freds','pp']:
                print "That's not valid"
                book = raw_input('Book: ')

            if result == 0 and book == "bfair":
                bfair_balance = bfair_balance - stake
                new_books.append(bfair_balance)
            elif result == (stake * odds) and  book == "bfair":
                bfair_balance = bfair_balance - stake + (stake * odds)
                new_books.append(bfair_balance)

            if result == 0 and book == "freds":
                freds_balance = freds_balance - stake
                new_books.append(freds_balance)
            elif result == (stake * odds) and  book == "freds":
                freds_balance = freds_balance - stake + (stake * odds)
                new_books.append(freds_balance)

            if result == 0 and book == "pp":
                pp_balance = pp_balance - stake
                new_books.append(pp_balance)
            elif result == (stake * odds) and  book == "pp":
                pp_balance = pp_balance - stake + (stake * odds)
                new_books.append(pp_balance)

            if result == 0 and book == "wh":
                wh_balance = wh_balance - stake
                print wh_balance - stake
                new_books.append(wh_balance)
            elif result == (stake * odds) and  book == "wh":
                wh_balance = wh_balance - stake + (stake * odds)
                new_books.append(wh_balance)

            if result == 0 and book == "sky":
                sky_balance = sky_balance - stake
                new_books.append(sky_balance)
            elif result == (stake * odds) and  book == "sky":
                sky_balance = sky_balance - stake + (stake * odds)
                new_books.append(sky_balance)


            my_list=[selection,stake,odds,result,book]

            inputs.append(my_list)
            print
            total_stake=[]
            for my_list in inputs:
                total_stake.append(my_list[1])
            print "Total Stake: %d" %sum(total_stake)

            total_winnings = []
            for my_list in inputs:
                total_winnings.append(my_list[3])
            print "Total Winnings: %d" %sum(total_winnings)
            print
            new_balance = balance - sum(total_stake) + sum(total_winnings)
            print "New Balance:%d" %new_balance

            print "Bfair: %d, Sky: %d, pp: %d, freds: %d, wh: %d" %(bfair_balance, sky_balance, pp_balance, freds_balance, wh_balance)
            print

        elif add_selection == "No":
             break



        looks_good(inputs)



    import os
    os.system("pause")

if __name__ == '__main__':
            main()

Answer 1

使用循环以避免重复，

例如，您有：

while stake > bfair_balance: 
    print "You do not have sufficient funds"
    stake = float(raw_input('Stake: '))
# many very similar blocks

您应该使用循环来避免重复：

for balance in [bfair_balance, ...]:
    while stake > balance: 
        print "You do not have sufficient funds"
        stake = float(raw_input('Stake: '))