我正在做一个文字广告。我有一个房间类和一个项目类,但是当我在房间内放置多个项目时,我会遇到问题。以下是代码示例:
class Place(object):
"""The Room class"""
def __init__(self, name, Item):
self.name = name
self.Item = Item
class Item():
"""The Item class"""
def __init__(self, name):
self.name = name
PC = Item("PC")
Bed = Item("Bed")
bedroom = Place(name = "Bedroom", Item = {PC, Bed})
print (bedroom.Item.name)
和错误信息:
Traceback (most recent call last):
File "C:\Documents and Settings\Kenneth\My Documents\Python_Projects\projects\
TA.Project\location\classes2.py", line 18, in <module>
print (bedroom.Item.name)
AttributeError: 'set' object has no attribute 'name'
Press any key to continue . . .
这在我只有一个项目时有效,但当我尝试添加更多项目时会出错。我试图创建一个 for 循环来一次显示一个项目,但这也不起作用。任何帮助将非常感激。谢谢你。
我尝试的循环类似于:
for i in bedroom.Item:
print (i)
Attributeerror 'Place' 对象没有属性 'Item'
答案被接受,我想为其他有类似问题的人更新代码:
class Place:
def __init__(self, name: str, items: set):
self.name = name
if items is None:
items = set()
self.items = items
def get_item_names(self):
# one-liner: return [x.name for x in self.items]
names = []
for item in self.items:
names.append(item.name)
return '\n'.join(names)
def get_item_value(self):
value = []
for item in self.items:
value.append(item.value)
return value
class Item:
def __init__(self, name: str, value: iter):
self.name = name
self.value = value
Bed=Item("Bed", 200)
Chair=Item("Chair", 10)
Oven=Item("Oven", 500)
bedroom = Place("Bedroom", {Bed, Chair})
kitchen = Place("Kitchen", {Oven})
print (bedroom.get_item_names)
values 函数是为了证明 Item 类仍在工作。