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...
obj2 = MyClass("I am an instance attribute of obj2")print(obj1.class_attr)# 输出 "I am a class attribute"print(obj2.class_attr)# 输出 "I am a class attribute"print(obj1.ins_attr)# 输出 "I am an instance attribute of obj1"print(obj2.ins_attr)# 输出 "I am an instance attri...
print(inspect.getsource(demo.A.get_name))>>> def get_name(self):"返回类的实例的名称"return self.name 上面代码仍然是保留缩进的。如果你试图返回类的实例（比如demo.py中定义的instance_of_a）的源代码，则会抛出TypeError异常。异常内容如下：“TypeError: module, class, method, function, traceback, ...
首先,你可以在函数中创建类,使用class关键字即可。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 defcls_factory(cls_name):"""创建类工厂:param:cls_name 创建类的名称"""ifcls_name=='Foo':classFoo():passreturnFoo # 返回的是类,不是类的实例 elif cls_name=='Bar':classBar():passreturnBa...
``` # Python script to manage AWS resources using Boto3 import boto3 def create_ec2_instance(instance_type, image_id, key_name, security_group_ids): ec2 = boto3.resource('ec2') instance = ec2.create_instances( ImageId=image_id, InstanceType=instance_type, KeyName=key_name, SecurityGroup...
return descriptor.__get__(descriptor, a, A)在前一章中,我们看到从<class A>创建<instance a>时,Python虚拟机仅为a申请了16个字节的内存,并没有额外创建PyDictObject对象的动作。不过在<instance a>中,24个字节的前8个字节是PyObject,后8个字节是为两个PyObject *申请的,难道谜底就在这多出的两个PyObj...
class Test: def __init__(self, func): self.func = func def __get__(self, instance, owner): ''' instance:代表实例 owner:代表类本身 ''' print('调用的是get函数'.center(50, '-')) return self.func(instance) class Person(object): def __init__(self): self.result = 0 @Test def...
fo=Foo()fo# <__main__.Foo object at 0x7ff5c9622700>type(fo)# <class '__main__.Foo'> 由操作结果可知,Foo() 的返回值是一个实例对象。 3 属性 Python 语言中对象的属性,可以分为类属性(Class Attribute)和实例属性(Instance Attribute)。在8.2节所演示的初始化方法中定义的属性,都属于实例属性。
im_class class object that asked for this method (1) im_func or __func__ function object containing implementation of method im_self or __self__ instance to which this method is bound, or None function __doc__ documentation string __name__ name with which this function was defined func...
class Foo: # The class gets a method "bar". # Note: for methods, the first parameter is always "self" and # points to the current instance. This is similar to "this" in # ST and other languages. def bar(self, a, b):