Python for循环运行两次，即使有休息

Question

我在空闲时间开发基于文本的RPG以获得乐趣，并且我已经开始为NPC互动实施易货，盗窃和购物系统。交易工作和偷窃一样，但购买游戏内物品却没有。所有的机制工作，但由于某种原因，for循环运行两次！我甚至尝试实现一个整数来限制它购买，但它也没有帮助。我提供了selltoplayer()功能的代码。

请记住，除了休息后继续循环外，一切正常。

def selltoplayer(self, player):
    inv = self.readableinv()  #Give us a viewable inventory
    print("What would you like? I have the following items in stock:\n{0}".format(inv))  #display said inv
    purchaseitem = input("Type the name of the item that you wish to purchase:\n")  #Get the requested item
    timespurchased = 0
    for item in self.inventory:  #search each item in the inventory
        if timespurchased < 1:
            if item.name == purchaseitem:  #once the correct item is found...
                ImportantCalculations.determinevalue(player, item)  #get the item's value
                if player.money >= item.buyvalue:  #and make sure that the player can afford it.
                    confirm = input("So, you would like to purchase {0} for {1} Karics?\n".format(item.name,
                                                                                              item.buyvalue))
                    #Just a simple confirmation
                    if confirm.lower() == 'y' or confirm.lower() == 'yes':  #If the player would like the item
                        print("Thanks for your purchase!")  #the merchant is kind
                        player.inventory.append(item)  #put the item in the player's inventory
                        self.inventory.remove(item)  #take the item out of the merchant's inventory
                        player.money -= item.buyvalue  #withdraw the proper amount of money from the player's stores
                        pinv = player.readableinv()  #Readable inventory for player
                        print(pinv)  #Debug line to make sure that the item was properly transferred
                        print(player.money)  #Debug line to make sure that the money was properly transferred
                        timespurchased += 1
                        break  #stop
                    elif confirm.lower() == 'n' or confirm.lower() == 'no':  #If the player made a mistake
                        print("Oh, okay.")  #Try to guilt the player out of leaving
                        exitsell = input("Would you like to browse again (A) or exit (B)?\n")  #ask if they want to
                        #purchase something different or leave
                        if exitsell.lower() == 'a':  #resell items
                            self.rselltoplayer(player)
                        elif exitsell.lower() == 'b':  #exit
                            print("Thanks for stopping by!")
                            break
                        else:
                            print("Sorry, I don't speak gibberish. I'll see you around!")
                            break
                    else:
                        print("Sorry, I don't speak gibberish. I'll see you around!")
                        break
                else:
                    print("I'm sorry, but you cannot afford this...")
                    self.rselltoplayer(player)
        else:
            break

以下是运行文件时发生的情况：

What would you like? I have the following items in stock:

['Stick', 'Rock', 'Scarf', 'Explosives', 'Diamond Ring']  #Prints inventory fine

Type the name of the item that you wish to purchase:

Stick

So, you would like to purchase Stick for 104 Karics?    #Interprets player choice properly (including the value)

yes

Thanks for your purchase!  #Interprets confirmation fine

['Stick']  #Prints player inventory fine

396  #Prints player money fine

#Then... It loops again.

What would you like? I have the following items in stock:

['Rock', 'Scarf', 'Explosives', 'Diamond Ring']

Type the name of the item that you wish to purchase:

Scarf

#And doesn't even complete. What's going on?

Process finished with exit code 0

随意询问是否有足够的信息。

Answer 1

从原帖：

  

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