Multithreading has to talk about the Future class

Link: link. In high-performance programming, concurrent programming has become a very important part. When the performance of single core CPU has reached the limit, we can only further improve the performance of the system through multi-core, so concurrent programming is born. Because concurrent programming is more difficult and error pron ...

Posted by Chinese on Fri, 18 Feb 2022 04:29:02 +0100

Chapter 1 of MySQL, creating S,C,T,SC,TC tables

MySQL computer practice Chapter 1 Computer purpose Familiar with Mysql software installation;      2. Familiar with the code creation of database and data table; Computer content Write out five relational patterns in Teach database and mark the primary key and foreign key S (Student Relations) Sno Student number Sn full ...

Posted by fpbaum on Fri, 18 Feb 2022 04:27:15 +0100

Detailed explanation of Apache Log4j 2 Remote Code Execution Vulnerability

If you are Xiaobai, this set of information can help you become a big bull. If you have rich development experience, this set of information can help you break through the bottleneck 2022web full set of video tutorial front-end architecture H5 vue node applet Video + data + code + interview questions. On November 24, 2021, Alibaba cloud secu ...

Posted by mdnghtblue on Fri, 18 Feb 2022 04:18:32 +0100

"HTML+CSS" custom loading animation [048]

preface Hello! buddy! First of all, thank you very much for reading Haihong's article. If there are mistakes in the article, you are welcome to point out ~ Ha ha, introduce yourself Nickname: Haihong Label: program ape a C + + player student Introduction: I got acquainted with programming in C language and then transferred to computer major ...

Posted by maciek4 on Fri, 18 Feb 2022 04:17:49 +0100

Virtual DOM and Diff algorithm of react from introduction to practice

1, Virtual DOM and Diff algorithm of react Virtual DOM and diff algorithm are two core concepts in React. We need to have a comprehensive understanding of them. This is very helpful for us to use scaffolding to develop projects, especially for projects in which the front and back ends of the enterprise are separated (similar to: background ma ...

Posted by oneofayykind on Fri, 18 Feb 2022 04:15:31 +0100

Linear regression

Univariate linear regression Model description For the model affected by a single variable, we usually abstract it into the form of univariate primary function, and we assume a hypothetical function H( θ)=θ 0+ θ 1x Cost function When we make a hypothetical function, we need to determine θ 0 and θ 1 the values o ...

Posted by Tanus on Fri, 18 Feb 2022 04:07:40 +0100

Week 1 programming

1. Program and implement a function getint that inputs an integer within the specified range. Its complete function prototype is: int getint(int min, int max);, It is responsible for receiving the user's input, verifying, ensuring that the received must be an integer between min and max ([min, max] interval), and finally returning the integer. ...

Posted by GuitarheadCA on Fri, 18 Feb 2022 04:01:12 +0100

Protobuf generate Go code plug-in gogo/protobuf

1. Start with json When it comes to serialization, the first thing you think of may be JSON or XML. These two serialization protocols are text-based encoding for data transmission. Similar to YAML. JSON has many advantages, making it one of the most widely used serialization protocols. JSON protocol is simple, human eye readable, very concise ...

Posted by krox on Fri, 18 Feb 2022 03:45:52 +0100

MySQL data migration

preface: In daily work, we often encounter the need of data migration, such as migrating a table, a library or an instance. Different migration schemes may be adopted according to different needs, and various size problems may be encountered in the process of data migration. In this article, let's take a look at MySQL data migration, hoping to ...

Posted by jonniejoejonson on Fri, 18 Feb 2022 03:36:41 +0100

Asynchronous orchestration - completable future

1, Completable future asynchronous orchestration 1. Business scenario The logic of querying the product details page is complex, and some data needs to be called remotely, which will inevitably take more time. If each query of the product details page needs the time indicated below to be completed, then the user needs 5.5s to see the content ...

Posted by frans-jan on Fri, 18 Feb 2022 03:34:02 +0100