In Python programming, the most common types of collections we use are: list,tuple,set,dict; let's talk about these types of collections in a few simple ways;List lists: Equivalent to an array, but the length of the list is automatically changed and
List ObjectDefinition of a List objectInside a list object is an array implementation that stores a pointer in an array, pointing to the object to be saved. Allocated is the size of the array in the list, and ob_size is the size of the array
Dict is the abbreviation of the Dictionary dictionary, he holds the key value pair key/value, denoted in curly braces, the format is d={' micheal ':, ' Jack ': 88}Direct print (d[' micheal ') #输出相应的99 when we visit;Can be copied to dict and will
A dictionary is aKey:valueThe data typedict1{' Stud1 ': ' Sun Lizhao ',' Stud2 ': ' Slz ',' Stud3 ': ' Sunlizhao ',}Dict is unordered, and key is the only one born to go heavy.Increase:Dict1[' stud4 '] = ' Cang jing empty 'Modify:dict1[' stud4 '] = '
And Redis, as the most commonly used cache server in recent years, I believe you are familiar with them. The first two years are still in school, I have read their main source code, and now write a note from a personal point of view a simple
The source code to be learned in this chapter is in Dict.h and dict.c two files. In the Java language, or in other languages that support associative arrays, the first thing we know is that associative arrays (dictionaries) are "arrays" of key-value,
The Tianyi open platform provides a free SMS verification code API. let's take a look at how to use it. We use the python development interface for many
Verification codeFor the solution, this API is backed by China Telecom, a heavyweight operator.
For the current number of authentication code solutions, this API with China Telecom, the heavyweight operator as a backer, should be more reliable, but also free. For more information, see: http://open.189.cn
How to use:#定义app_id和app_secretr =
(1) AceLarge and complex, suitable for larger projects. Open source, free, independent of third-party libraries, support cross-platform.Http://www.cs.wustl.edu/~schmidt/ACE.html(2) AsioASIO based on boost development, the asynchronous IO Library
1. Complete project development process:Product Manager to do demand research, write requirementsProduct Manager completes prototypeMeeting of the project managerArtwork with product manager out, cut chartIos,android analysis needs to assign tasks,
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.