We can use thezip()function to create a list of tuples, where each tuple comprises an index and a value from the original list, and then convert this list oftuplesto a dictionary. my_list=['a','b','c']my_dict=dict(zip(range(len(my_list)),my_list))print(my_dict) Copy In t...
settle:create another list dictionary A dictionary is an unordered collection of key: value pairs, with each key in a dictionary being distinct. key:immutable value: mutable Convert Iterable of Pairs into Dictonary dict() 、dict(an_iter) 将一对值转换为dict的key-value形式,前提是key是immutable的。
dict(mapping)-> new dictionary initializedfroma mapping object's(key, value) pairs dict(iterable)-> new dictionary initialized asifvia: d={}fork, viniterable: d[k]=v dict(**kwargs) -> new dictionary initialized with the name=value pairsinthe keyword argument list. For example: dict(one=...
不可变数据类型:str、int、tuple 可变数据类型:dict、list 今天讲解的字符串属于不可变类型。 Python字符串编码 Python3中的字符串是Unicode的序列,也就是说,Python3的字符串支持多语言了;Python2中的字符串是byte序列。 例如: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 In[1]:print('含有中文的字符串...
3里返回的是可迭代的对象,需要使用list()将它转换为列表,了解即可),举例如下: >>> print dict {'Vendor': 'Cisco', 'IOS: '12.2(55)SE12', 'CPU': 36.3, 'Model': 'WS-C3750E-48PD-S', 'Ports': 48} >>> print dict.values() ['Cisco', '12.2(55)SE12', 36.3 'WS-C3750E-48PD-S'...
list(iterable) -> new list initialized from iterable's items 1. 2. 列表类的内置方法: def append(self, p_object): """ L.append(object) -> None -- append object to end """ pass 直接将p_object参数添加到列表末尾,此操作直接在原列表上完成,不返回任何值。
list)set_version =set(number_list)print(tuple_version)# (1, 2, 3, 4, 5)print(set_version)# {1, 2, 3, 4, 5}若要将列表转为字典，通常需要提供一个与之对应的键列表：keys =['apple','banana','cherry']values =[10,20,30]fruit_dict =dict(zip(keys, values))print(fruit_dict)# {...
知其然也要知其所以然,python中的容器对象真的不多,平常我们会很心安理得的根据需求来使用对应的容器,不定长数据用list,想去重用set,想快速进行匹配用dict,字符处理用str,可为何能实现这个效果呢?比如我们用list的时候,知道这玩意可以随意存储各种格式,存整型、浮点、字符串、甚至还可以嵌套list等其他容器,这底层...
A dictionary key can have any type of data as its value, for example, alist,tuple, string, or a dictionary itself. Convert pandas dataframe to a dictionary without index Pandas provide a method calledpandas.DataFrame.to_dict()method which will allow us toconvert a DataFrame into a dictionary...
.format(*list) print(str1) print(str2) 执行以上代码,输出结果为: Beijing is a beautiful city! city is a beautiful Beijing! ② 匹配字典中的参数 dict = {"name1": "Beijing", "name2": "city"} str1 = "{name1} is a beautiful {name2}!".format(**dict) print(str1) 执行以上代码,...