Follow me to learn c + + intermediate -- STD:: string of STL string_ view
1, Standard library string processing A very different difference between C and C + + is the processing of strings. A string operation class of std::string is provided in the standard library of C + +. This makes the operation of C + + on string get rid of the operation of original pointer to sUTF-8...
Posted by aprinc on Mon, 25 Oct 2021 10:37:27 +0530
36 regular expressions, and the development efficiency is improved by 80%
Collect these 36 regular expressions and improve the development efficiency by 80% Write in front In our daily Java development, we often need to deal with some strings. Regular expressions are very useful at this time. Regular expressions are supported in almost all programming languages. BeloUTF-8...
Posted by bokerfest on Mon, 25 Oct 2021 12:30:39 +0530
9, Scala packages and sample classes
1. Package In actual development, if you encounter classes with the same name (such as two Person classes), how can you distinguish them without changing the class name? You need to use a package 1.1 general A package is a folder. It is decorated with the keyword package. It can distinguish duUTF-8...
Posted by divedj on Mon, 25 Oct 2021 14:21:05 +0530
Python basics -- strings
preface: Common variable types in Python are: Dictionary (dic), list (list) Common immutable types in Python are: number, string (str), tuple (tuple) List operation 1-list add element: The difference between Append() and extend(): Append() adds * * * single element * * *, or list, tuple, etc. tUTF-8...
Posted by tsukushi on Mon, 25 Oct 2021 16:23:04 +0530
Detailed explanation of context: Property placeholder tag in spring
Instructions for using the context: Property placeholder tag in spring 1. Some parameters are constant in some stages. In the development phase, we need the url, username, password and other information when connecting to the database server address and port of client in distributed applicationUTF-8...
Posted by lasith on Mon, 25 Oct 2021 18:44:37 +0530
[Linux high concurrency server] shared memory
[Linux high concurrency server] shared memory Article overview This article is a personal note of Niuke C + + project course: a tutorial on Linux high concurrency server Author information NEFU 2020 zsl ID: fishingrod / fishing rod Email: 851892190@qq.com You are welcome to quote this blog. WheUTF-8...
Posted by bsgrules on Tue, 26 Oct 2021 07:12:42 +0530
Two ways of exception handling in Java learning
Two ways of exception handling in Java learning There are two methods of exception handling, namely 1. Propagate the declaration of exception to the calling direction and throw exception handling 2. Capture the program handling exceptions in the current method 1, Declare exception handling 1. DUTF-8...
Posted by phpfreak101 on Tue, 26 Oct 2021 09:39:21 +0530
Introduction to Python 3 functions and parameters
1, Define function 1. Rules for defining functions. (1)Function code block def Keyword, followed by function identifier name and parentheses(). (2)Any incoming parameters and arguments must be placed between parentheses, which can be used to define parameters. (3)The first line of the functionUTF-8...
Posted by Dragonfly on Tue, 26 Oct 2021 11:07:35 +0530
Two or three things of C + + inheritance
Inheritance definition Inheritance mechanism is the most important means for object-oriented programming to make code reusable. It allows programmers to extend and add functions on the basis of maintaining the characteristics of the original class, so as to produce new classes, called derived cUTF-8...
Posted by habs20 on Tue, 26 Oct 2021 11:14:37 +0530
Talk about caching in Java
In this article, we mainly talk about the use of cache in Java Java's abstraction of cache -- JSR107Spring abstraction of cache Spring CacheHow Redis is integrated into Spring -- as the implementation of Spring Cache, RedisCache is used directly, and RedisTemplate is used Say something first CaUTF-8...
Posted by rakuci on Tue, 26 Oct 2021 12:48:57 +0530