section 定义类 Define a class: Person section 实例化类 Create an instance: person section 获取属性列表 Get attributes list: dir(person) section 筛选实例属性 Filter instance attributes section 访问属性值 Access attribute values 结语 通过本文的指导,你应该已经学会了如何在Python中获取类属性。这个过程包括...
my_object = MyFirstClass("World") my_object.greet() # 输出: Hello, World!属性与方法 属性（Attributes）：属性是绑定到类的实例的变量。在上面的例子中，name就是一个属性，它记录了每个MyFirstClass实例的名称。方法（Methods）：方法是定义在类内部的函数，它们可以修改对象的状态或者执行与对象相关的任务。
print(bob.name) # Runs __getattributes__ print(hasattr(bob, "_name")) # print(bob._name) 这一句失效了,因为getattributes不会放过这个变量,尽管已经定义过了 bob.name = 'Robert Smith' # Runs __setattr__ print(bob.name) del bob.name # Runs __delattr__ print('-' * 20) sue = Pers...
classPerson:def__init__(self,name,age,gender):self.name=name self.age=age self.gender=genderdefget_attributes_dict(self):returnvars(self)defget_all_attributes(self):returndir(self)# 实例化对象person=Person("Alice",30,"Female")# 获取属性字典attributes_dict=person.get_attributes_dict()print(...
InFigure 23-1, theLineIteminstance attributesweightandpriceare the storage attributes. They are distinct from the descriptor instances, which are always class attributes. Managed Attribute:A public attribute in the managed class that is handled by a descriptor instance, with values stored in storage...
class MyClass: def __init__(self): self.attribute1 = "Value 1" self.attribute2 = "Value 2" self.attribute3 = "Value 3" my_object = MyClass() # 获取类的所有属性和方法名称 attributes = dir(my_object) # 遍历属性列表并获取属性值 for attribute in attributes: value = getattr(my...
1 >>>dir(str)2 ['__add__','__class__','__contains__','__delattr__','__doc__','__eq__','__format__','__ge__','__getattribute__','__getitem__','__getnewargs__','__getslice__','__gt__','__hash__','__init__','__le__','__len__','__lt__','...
classCircle(object):def__init__(self,radius):self.radius=radius@propertydefdiameter(self):return...
classRevealAccess(object):"""Adata descriptor that setsandreturns values normallyandprints a message logging their access."""def__init__(self,initval=None,name='var'):self.val=initvalself.name=namedef__get__(self,obj,objtype):print'Retrieving',self.namereturnself.valdef__set__(self,obj,...
class Shape: no_of_rows = 20 #for y dimension no_of_columns = 10 #for x dimension #constructor def __init__(self, column, row, shape): self.x = column self.y = row self.shape = shape #class attributes self.color = objects_color[game_objects.index(shape)] #get color based on...