__str__():用于定义对象的“非正式”字符串表示,通常用在print()函数中。 __repr__():用于定义对象的“正式”字符串表示,一般用于调试。 第二步:实例化对象并打印 接下来,我们实例化Person类并尝试使用不同的方法打印这些对象。 # 创建一个 Person 对象person=Person("Alice",30)# 使用 print() 打印print...
struct _typeobject *ob_type; /* Nothing is actually declared to be a PyObject, but every pointer to * a Python object can be cast to a PyObject*. This is inheritance built * by hand. Similarly every pointer to a variable-size Python object can, * in addition, be cast to PyVarObje...
importsys# 创建一个列表对象my_list=[1,2,3]# 创建别名another_list=my_list# 修改对象another_list.append(4)# 打印两个名称引用的对象print(my_list)# [1, 2, 3, 4]print(another_list)# [1, 2, 3, 4]# 查看对象的引用计数ref_count=sys.getrefcount(my_list)print(f"Reference count of my...
classDiscount:def__init__(self,r=0.9):self.__rate=rdefgetRate(self):returnself.__ratedefhowMuch(self):returnmoney*self.__ratemoney=10000obj1=Discount(0.7)print("此件商品的原有价格为",money,"元")print("这件商品的折扣为",obj1.getRate())print("打折扣后商品的价格为",obj1.howMuch()...
d = {'a': 1, 'b': 2} print d.get('c') # None print d.get('c', 14) # 14 2、fromkeys dict本身有个fromkeys方法,可以通过一个list生成一个dict,不过得提供默认的value,例如: # ⽤序列做 key,并提供默认value >>> dict.fromkeys(['a', 'b', 'c'], 1) # {'a': 1, 'c': ...
classMyClass(object):"""This is a simple class for display how to create a class. """name='NewClass'deffunc(self):print('Hello class, my name is %s'%self.name)new_obj=MyClass()print(new_obj.func)# <bound method MyClass.func of <__main__.MyClass object at 0x103b3b2e8>># ...
examples.to_json() headers = {'Content-Type':'application/json'} # send request to service resp = requests.post(service.scoring_uri, input_data, headers=headers) print("POST to url", service.scoring_uri) # can covert back to Python objects from json string if desired print("prediction...
The following example converts a time string into adatetime.time()object, and prints the class type and value of the resulting object: fromdatetimeimportdatetime time_str='13::55::26'time_object=datetime.strptime(time_str,'%H::%M::%S').time()print(type(time_object))print(time_object) ...
Provides extensible public function app interfaces to build and reuse your own APIs. The following example shows how to use blueprints: First, in an http_blueprint.py file, an HTTP-triggered function is first defined and added to a blueprint object. Python Copy import logging import azure.fu...
] ) result = poller.result() print(f"Status: {poller.status()}") print(f"Created on: {poller.details.created_on}") print(f"Last updated on: {poller.details.last_updated_on}") print(f"Total number of translations on documents: {poller.details.documents_total_count}") print("\nOf to...