因此,当我尝试形成桩类时,我正在玩纸牌游戏,在此我构造了一个函数来打印卡类中的卡和桩类中的卡列表。当我尝试使用桩类中的卡片类(在其他类中使用过)的功能时,没有得到预期的结果。我该如何解决?
卡类:
import random
from Enums import *
class Card:
def __init__(self):
self.suit = Suit.find(random.randint(1, 4))
self.rank = Rank.find(random.randint(1, 14))
def show(self):
print (self.rank.value[1], "of", self.suit.value[1])
桩类:
from Enums import *
from Card import *
from Hand import *
class Pile:
def __init__(self):
self.cards = []
self.cards.append(Card())
def discard(self, hand, card):
self.cards.append(card)
if (not searchCard(self, hand, card)):
print ("The card was not found, please select another one or cheat")
return True
else:
return False
def takePile(self, hand):
for x in self.cards:
hand.cards.append(self.cards[x])
def clearPile(self):
while len(self.cards) > 0:
self.cards.pop()
def searchCard(self, hand, card):
flag = False
for x in hand.cards and not flag:
if (hand.cards[x].rank.value[0] == card.rank.value[0]):
if (hand.cards[x].suit.value[0] == card.suit.value[0]):
hand.cards[x].pop()
flag = True
return flag
def showCurrent(self):
for x in self.cards:
x.show()
我指的是Card类中的show函数,而桩类中是showCurrent和init。
当我运行游戏和线条时
print ("It's your turn now, the pile presents a", pile.showCurrent())
我从Card类中的show函数获得None而不是打印内容,如下所示:
现在轮到您了,一堆没有礼物
答案 0 :(得分:3)
主要问题是您正在打印showCurrent()
的结果,即None
。要解决此问题,只需将呼叫移至showCurrent
中的print
:
print("It's your turn now, the pile presents a")
pile.showCurrent()
此外,您可能希望将show
方法更改为适当的__str__
方法,以使其更具通用性。您也必须更改showCurrent
方法:
# in class Card:
def __str__(self): # just return the formatted string here
return "%s of %s" % (self.rank.value[1], self.suit.value[1])
# in class Pile:
def showCurrent(self): # print the string here
for x in self.cards:
print(x) # this calls str(x), which calls x.__str__()
但是您的消息表明您实际上只想打印最上面的卡片,而不是整个纸叠。使用__str__
,您现在可以直接在print
调用中完成此操作:
print("It's your turn now, the pile presents a", pile.cards[0]) # calls __str__