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 ...
c = MyClass(5)print(c.x)# 输出5delc.x# print(c.x) # AttributeError: 'MyClass' object has no attribute '_x' 6. @cached_property 缓存属性,只计算一次,后续访问直接返回缓存值。 fromcached_propertyimportcached_propertyclassMyClass:@cached_propertydefx(self):print("Calculating x.")return5c ...
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 def__init__(self,uid,name,status=0,lever=0):'''有默认值在实例...
没有继承父类默认继承object,是所有类的父类 AI检测代码解析 class Animal: def __init__(self,name,aggr,hp): = name self.aggr = aggr self.hp = hp class Dog(Animal): def bite(self,person): person.hp -= self.aggr class Person(Animal): def attack(self,dog): dog.hp -= self.aggr jin...
#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....
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...
class Student(object): __init__(self,name,score): # can't access directly self.__name=name # recommend not to access self._score=score get_name(self): return self.__name set_name(self,name): self.__name=name s=Student("John",59); ...
classMyClass:i=12345# 类变量(类属性)# 构造方法,用于初始化类的实例def__init__(self,name,data):self.name=name# 实例属性self.data=[]# 实例属性# 实例方法defappend(self,value):self.data.append(value)# 实例方法defget_name(self):returnself.name# 类对象属性引用print(MyClass.i)# 12345# 类...
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...
>>> 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) ...