我如何避免在这里使用全局变量？

Question

我知道使用全局变量是个坏习惯，所以我试图在不使用全局变量的情况下重新制作我的 black jack 程序。目前此代码打印出玩家的手牌 (pH)，但不打印玩家手牌的价值 (pHnum)。抱歉，我知道这是很多代码，问题发生的地方是“await ctx.send(pHnum)”，它没有发送我想要的值。我知道如何使用全局变量解决此问题，但还有其他方法吗？？？下面的代码。


  # lists
  pH = []
  dH = []

  # Hand Values 
  pHnum = 0
  dHnum = 0
  
   
  
  # The starting player hand 
  async def playerHand():
    addCardP(pHnum, pH); 
    addCardP(pHnum, pH);
    await ctx.send(pH)
    await ctx.send(pHnum)

    
  # Adding a card to the player hand 
  def addCardP(pHnum, pH):
    # Creating a Card
    Card = randint(2,14)
    # Creating a Suit
    suit = randint(1,4)
    if (suit == 1):
      suit = '♤'
    elif (suit == 2):
      suit = '♡'
    elif (suit == 3):
      suit = '♢'
    elif (suit == 4):
      suit = '♧'
    # For if the card is less then 10; 2-10
    if (Card <= 10): 
      pHnum = pHnum + Card
      Card = str(Card)
      cardS = Card + suit
      pH.append(cardS)
    # If the card is greater then 10; 11-14
    else: 
      if (Card == 14):
        Card = 'A'
        cardS = Card + suit
        pH.append(cardS)
      else: 
        pHnum =+ 10
        if (Card == 11):
          Card = 'J'
          cardS = Card + suit
          pH.append(cardS)
        elif (Card == 12):
          Card = 'Q'
          cardS = Card + suit
          pH.append(cardS)
        elif (Card == 13):
          Card = 'K'
          cardS = Card + suit
          pH.append(cardS)
    return pH, pHnum

我想找到一种不使用全局变量的方法。很抱歉，如果这是一个愚蠢的问题，我是整个编码的新手。非常感谢您的提前帮助。希望你今天过得愉快！！

Answer 1

您需要将结果赋值给变量。

async def playerHand():
    pH = []
    phNum = 0
    pH, pHnum = addCardP(phnum, pH)
    pH, pHnum = addCardP(phnum, pH)
    await ctx.send(pH)
    await ctx.send(pHnum)

我如何避免在这里使用全局变量？

How would I avoid using a global variable here?

python

global-variables

discord.py