Python 属性错误:';str';对象没有属性
我对python编程相当陌生,我想尝试一个简单的文本冒险游戏,但我立即遇到了一个障碍Python 属性错误:';str';对象没有属性,python,attributeerror,Python,Attributeerror,我对python编程相当陌生,我想尝试一个简单的文本冒险游戏,但我立即遇到了一个障碍 class userInterface: def __init__(self, roomID, roomDesc, dirDesc, itemDesc): self.roomID = roomID self.roomDesc = roomDesc self.dirDesc = dirDesc self.itemDesc = itemDesc
class userInterface:
def __init__(self, roomID, roomDesc, dirDesc, itemDesc):
self.roomID = roomID
self.roomDesc = roomDesc
self.dirDesc = dirDesc
self.itemDesc = itemDesc
def displayRoom(self): #Displays the room description
print(self.roomDesc)
def displayDir(self): #Displays available directions
L1 = self.dirDesc.keys()
L2 = ""
for i in L1:
L2 += str(i) + " "
print("You can go: " + L2)
def displayItems(self): #Displays any items of interest
print("Interesting items: " + str(self.itemDesc))
def displayAll(self, num): #Displays all of the above
num.displayRoom()
num.displayDir()
num.displayItems()
def playerMovement(self): #Allows the player to change rooms based on the cardinal directions
if input( "--> " ) in self.dirDesc.keys():
letsago = "ID" + str(self.dirDesc.values())
self.displayAll(letsago)
else:
print("Sorry, you can't go there mate.")
ID1 = userInterface(1, "This is a very small and empty room.", {"N": 2}, "There is nothing here.")
ID2 = userInterface(2, "This is another room.", {"W": 3}, ["knife", "butter"])
ID3 = userInterface(3, "This is the third room. GET OVER HERE", {}, ["rocket launcher"])
ID1.displayAll(ID1)
ID1.playerMovement()
这是我的代码,出于某种原因会抛出该错误:
Traceback (most recent call last):
File "D:/Python34/Text Adventure/framework.py", line 42, in <module>
ID1.playerMovement()
File "D:/Python34/Text Adventure/framework.py", line 30, in playerMovement
self.displayAll(fuckthis)
File "D:/Python34/Text Adventure/framework.py", line 23, in displayAll
num.displayRoom()
AttributeError: 'str' object has no attribute 'displayRoom'
回溯(最近一次呼叫最后一次):
文件“D:/Python34/Text Adventure/framework.py”,第42行,在
ID1.玩家移动()
playerMovement中第30行的文件“D:/Python34/Text Adventure/framework.py”
self.displayAll(操这个)
displayAll中第23行的文件“D:/Python34/Text Adventure/framework.py”
显示室数目()
AttributeError:“str”对象没有属性“displayRoom”
我在互联网上和python文档中搜索过我到底做错了什么,我不知道。如果我用ID2或ID3代替self.displayAll(letsago),它工作得很好,但毫无意义,因为玩家无法控制他想去哪里,所以我猜尝试将ID与字典中的数字连接是有问题的,但是我不知道该怎么做以及如何解决这个问题。问题在于您的
playermovation
方法。您正在创建房间变量的字符串名称(ID1
,ID2
,ID3
):
然而,您创建的只是一个str
。这不是变量。另外,我不认为它在做你认为它在做的事情:
>>>str({'a':1}.values())
'dict_values([1])'
如果确实需要通过这种方式查找变量,可以使用eval
功能:
>>>foo = 'Hello World!'
>>>eval('foo')
'Hello World!'
class Foo(object):
def __init__(self):
super(Foo, self).__init__()
def test(self, name):
print(globals()[name])
foo = Foo()
bar = 'Hello World!'
foo.text('bar')
或globals
功能:
>>>foo = 'Hello World!'
>>>eval('foo')
'Hello World!'
class Foo(object):
def __init__(self):
super(Foo, self).__init__()
def test(self, name):
print(globals()[name])
foo = Foo()
bar = 'Hello World!'
foo.text('bar')
然而,我强烈建议你重新思考你的课程。您的
用户界面
类本质上是一个房间
。它不应该处理玩家的移动。这应该在另一个类中,可能是GameManager
或类似的类。letsago
是一个字符串,而不是userInterface
的实例。当您将文件室的ID发送到.displayAll()
中时,请确保a)在列表中查找文件室并获取该文件室(userInterface的实例)然后调用.displayAll()
或将userinterface的实例直接传递到displayAll()
中。一旦代码正常工作,请随时发布,因为我有一些注释不适用于此设置:D