整数Integer(int) 浮点数 Float(python中默认为双精度浮点型) 布尔值 Boolean(bool) 类型Type(“类型”也是种类型) 其他数据类型 字符串 String(str)、列表 List、元组 Tuple、集合 Set、字典 Dictionary(dict,或者可以叫它映射 map)、复数 Complex Number(complex)、函数 Function、模块 Module print(type("2.2")...
# create a dictionary named capital_citycapital_city = {'Nepal':'Kathmandu','Italy':'Rome','England':'London'}print(capital_city['Nepal'])# prints Kathmanduprint(capital_city['Kathmandu'])# throws error message Run Code Here, we have accessed values using keys from thecapital_citydictionary...
这样做的目的,是为了让计算机在运行tuple时占用更少的内容,运行监测tuple里面元素时速度更快。 接下来介绍第三个表现形式:字典(dictionary) 字典,顾名思义,其实是拿来查询数据的,就像新华字典,根据拼音或者部首去查具体的某个字,找到它的意思翻出来。 字典跟列表都可以进行更改里面的元素。 字典的书写形式为 {} 上...
Python dictionary is a container of the unordered set of objects like lists.The objects are surrounded by curly braces { }. The items in a dictionary are a comma-separated list of key:value pairs where keys and values are Python data type. Each object or value accessed by key and keys ...
1. Python数据类型(6个) 1.1 数值型(number) 1.2 字符型(string) 字符串常用方法 转义字符 可迭代性 f-string 1.3 列表(list) 1.4 字典(dictionary) 1.5 集合(set) 1.6 元组(tuple) 1.7 内存视图Memoryview 2. 动态引用、强类型 3. 二元运算符和比较运算 4. 标量类型 5. 三元表达式 ...
Dictionary Items - Data Types The values in dictionary items can be of any data type: Example String, int, boolean, and list data types: thisdict ={ "brand":"Ford", "electric":False, "year":1964, "colors": ["red","white","blue"] ...
在Python中有四种内建的数据 结构,分别是List、Tuple、Dictionary以及Set。大部分的应用程序不需要其他类型的数据结构,但若是真需要也有很多高级数据结构可供 选择,例如Collection、Array、Heapq、Bisect、Weakref、Copy以及Pprint。本文将介绍这些数据结构的用法,看 看它们是如何帮助我们的应用程序的。
If you run this python dictionary data type example code, the output will be like the below image. So that’s all for today about Python data types. Don’t forget to run every piece of code on your own machine. Also, don’t just copy-paste. Try to write the lines of code on your...
{1:"one",2:"two",3:"three"}# valid dictionary# tuple as a keymy_dict = {(1,2):"one two",3:"three"}# invalid dictionary# Error: using a list as a key is not allowedmy_dict = {1:"Hello", [1,2]:"Hello Hi"}# valid dictionary# string as a key, list as a valuemy_...
The first example provides the simplest solution to have the data sorted by the keys. kitems = items.keys() kitems.sort() A list of keys is obtained from the dictionary. The list is sorted with thesortmethod. for k in kitems: