Q: How do I get a python object’s class name? A: Use the object’s __class__ attribute and then get its __name__ attribute. Another python introspection gem, to get an object’s class name just access its __class__ attribute, for example you can define a method to return the ...
class reptile(object)和class snake(reptile)就是代表父子关系。object是reptile的基类,reptile是snake的超类(基类)。这里有没有想起来 object是所有类的超类? Squasher = snake()是类型实例关系。将类snake实例化就得到了Squasher。 这时候,有两条很有用的规则: Dashed Arrow Up Rule:If X is an instance of A...
def func():pass print(func) class Foo: def func(self): print('func') f1 =Foo() print(Foo.func) print(f1.func) # <function func at 0x0000027994822A60> # <function Foo.func at 0x0000027994822E18> # <bound method Foo.func of <__main__.Foo object at 0x0000027994821588>> 1. 2. ...
class Vehicle: def name(self, name): return name v = Vehicle() print(type(v).__name__) Run Code Output Vehicle Using attribute __name__ with type(), you can get the class name of an instance/object as shown in the example above. type() gives the class of object v and __nam...
5. @get.deleter 用于删除属性的方法,必须定义在@property方法下面。 classMyClass:def__init__(self, value): self._x = value@propertydefx(self):returnself._x@x.deleterdefx(self):delself._x c = MyClass(5)print(c.x)# 输出5delc.x# print(c.x) # AttributeError: 'MyClass' object has...
self.name=name self.status=status self.lever=leverclassPlayer2(object):__slots__=['uid','name','status','lever']#关闭动态绑定属性,在python 中 属性都是通过__dict__进行维护的,动态属性会占用内存,此处关闭动态绑定后,我们不能再通过 类.属性的这种方式新增属性 ...
#定义一个类 >>> class obj(object): def__init__(self,x,y): self.x=x self.y=y #实例化一个类 >>> m=obj(3,4) #判断是否有x >>> hasattr(m,'x') True #获得x 的值 >>> getattr(m,'x') 3 #重新设置x的值 >>> setattr(m,'x',90) >>> m.x 90 #如果不存在’s’,则返回...
class A(object):"""模块中的自定义类A"""def __init__(self, name):self.name = name def get_name(self):"返回类的实例的名称"return self.name instance_of_a = A('一个实例')class B(A):"""这是类B 它继承自A类."""# 这个方法是B类独有的方法.def do_something(self):"""B类的实例...
#NOTE:__init__()methodsNEVERhave areturnstatement.defvalue(self):#3"""The value (in knuts) of all the coins in this WizCoin object."""return(self.galleons*17*29)+(self.sickles*29)+(self.knuts)defweightInGrams(self):#4"""Returns the weight of the coins in grams."""return(self....
classAutoClassAttribute(type):def__init__(cls, name, bases, attrs):attrs['version'] =1super().__init__(name, bases, attrs)classMyClass(metaclass=AutoClassAttribute):passprint(MyClass.version) 这个示例中,定义了一个元类AutoClassAttribute,会在创建类时自动添加一个名为version的属性。