my_tuple = (1, 2, 3) #create tuple print(my_tuple) 输出: (1,2,3) 访问元素 访问元素与访问列表中的值相同。 my_tuple2 = (1, 2, 3, 'python') #access elements for x in my_tuple2: print(x) print(my_tuple2) print(my_tuple2[0]) print(my_tuple2[:]) print(my_tuple2[3][...
multiple_elements_tuple=(2,'b',3.14159,[4,5]) 2.2 访问元组元素 元组中的元素可以通过索引来访问,索引从0开始: my_tuple=(1,'apple',3.14)first_element=my_tuple[0]# 1second_element=my_tuple[1]# 'apple' 切片操作也可以用于获取元组的一部分: slice_of_tuple=my_tuple[1:3]# ('apple', 3.1...
And in this case, Python returns a new tuple to me where the two tuples have been put together. 因为元组是序列,所以访问元组中不同对象的方式取决于它们的位置。 Because tuples are sequences, the way you access different objects within a tuple is by their position. 因此,如果我想访问元组中的...
Imagine I wanted to extract, or access, the first element of my list. 我要做的第一件事是键入列表的名称,然后我需要方括号。 The first thing for me to do is type the name of the list,then I need my square brackets. 现在请记住,在Python中,索引从零开始。 Now remember, in Python, indexe...
To access the items in a sublist, simply append an additional index:索引也是根据嵌套来的>>> x[1] ['bb', ['ccc', 'ddd'], 'ee', 'ff'] >>> x[1][0] 'bb' >>> x[1][1] ['ccc', 'ddd'] >>> x[1][2] 'ee' >>> x[1][3] 'ff' >>> x[3] ['hh', 'ii'] >>...
#access elementsmy_tuple2 = (1, 2, 3,'new') for x in my_tuple2:print(x) # prints all the elementsin my_tuple2print(my_tuple2)print(my_tuple2[0]) #1st elementprint(my_tuple2[:]) #all elementsprint(my_tuple2[3][1]) #this returns the 2nd character of the element atindex ...
(ops_conn, switch): """Set SSH client attribute of authenticating user for the first time access""" if switch not in ["true", "false"]: return ERR logging.info('Set SSH client rsa public key enable switch = %s', switch) uri = "/sshc/sshCPubKeyAlg" str_temp = string.Template(...
>>> tn[4][0]#Access a nested tuple5 您还可以从称为打包的过程的一组现有变量中创建一个tuple。 反之亦然,其中,tuple中的值被指派给变量。这之后的过程称为解包,它是用于许多情形的功能十分强大的技术,其中包括希望从一个函数中返回多个值。在解包tuple时,仅有的问题是必须为tuple中的每个数据项提供一个...
OverflowError Raised when the result of an arithmetic operation is too large to be represented. ReferenceError Raised when a weak reference proxy is used to access a garbage collected referent. RuntimeError Raised when an error does not fall under any other category. ...
Finally@parameterized_classparameterizes an entire class, using either a list of attributes, or a list of dicts that will be applied to the class: fromyourapp.modelsimportUserfromparameterizedimportparameterized_class@parameterized_class([{"username":"user_1","access_level":1},{"username":"user...