Python data analysis - drawing-2-Seaborn advanced drawing-4-classification diagram

1, Classified scatter diagram 1.stripplot Function: seaborn.stripplot Common parameters: x,y,hueReceive the variable name in data to represent the selected drawing variable, hue pass in the classification variable to classify the color.dataReceive DataFrame, array, list and series to represent the data set used for drawing.order,order_hueRe ...

Posted by Gamerz on Sat, 04 Dec 2021 22:34:19 -0800

Kapok mine clearance based on HarmonyOS ArkUI 3.0 framework

preface HarmonyOS ArkUI 3.0 framework trial first experience 2 comes |゙ ( ̄▽  ̄) ノミ| Ю, This time compared with the last time   Synthetic development practice , some contents are added: display animation, page Jump and data transfer, Grid container Grid, custom window, etc. Originally, I wanted to make distributed HarmonyOS ArkUI 3. ...

Posted by DKY on Sat, 04 Dec 2021 22:24:56 -0800

AAC ADTS media stream format analysis and FFmpeg parsing mp4 aac code stream method

Like other coding formats, AAC is only a data coding format. The code stream organization formats include ADIF(Audio Data Interchange Format) and ADTS (Audio Data Transport Stream). The significant difference between ADIF and ADTS is that the coding information of the former has a fixed place, and the coding information of the latter is contain ...

Posted by homer.favenir on Sat, 04 Dec 2021 22:18:39 -0800

Build a Web server in 3 minutes -- Java Spring Boot + MySql + Android App

Personal Taobao store link Partners in need can click here 1 Preparation (1) Download the official website of tomcat, unzip it to / Library, start the Tomcat server, and the official website of Tomcat appears; (2) When downloading MySql, the Mac should not download the latest version, because MySql cannot be opened in the system preferences. ...

Posted by LiveFree on Sat, 04 Dec 2021 22:14:02 -0800

Implementation principle of SpringBoot health check

For the routine of SpringBoot automatic assembly, directly look at the spring.factories file. When we use it, we only need to introduce the following dependencies <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> Then you can find t ...

Posted by pgudge on Sat, 04 Dec 2021 22:10:47 -0800

Use "Function" in Java 8 to eliminate if...else!

In the development process, if...else... Is often used to judge, throw exceptions, branch processing and other operations. These if...else... Are filled in the code, which seriously affects the beauty of the code. At this time, we can use the Function interface of Java 8 to eliminate if...else. if (...){ throw new RuntimeException("Somethin ...

Posted by OU_Student on Sat, 04 Dec 2021 22:07:10 -0800

New feature of C++20 - "spaceship" operator

The three-way operator was proposed by Herb Sutter and officially included in the C++20 draft determined on October 8, 2019. After using three-way operators in the class, the compiler can generate six basic operators by default. The use of this new feature reduces the workload of development to a certain extent. Therefore, it is also loved by e ...

Posted by tomerg3 on Sat, 04 Dec 2021 22:04:39 -0800

Vue +Springboot blog project summary

Vue+Springboot blog project summary Technology stack: Vue + springboot + mybatis Plus + redis + MySQL 1. Construction of project environment 1.1. Dependency of sub module and parent module When the parent module uses version management for dependency management, it must declare the version number. If not, the child module cannot introd ...

Posted by dickey on Sat, 04 Dec 2021 21:43:41 -0800

I'll show you everything about [Http persistent connection]

My conclusion above is that HTTP keep alive is a sliding renewal reuse of TCP connections at the application layer. If the client / server renews the contract stably, it will become a real long connection.At present, all HTTP network libraries enable HTTP keep alive by default. Today, we tear up HTTP persistent connections from the perspective ...

Posted by FURQAN on Sat, 04 Dec 2021 21:38:29 -0800

[issue 68] Interviewer: are you familiar with concurrency? Talk about Synchronized and its implementation principle

Basic use of Synchronized Synchronized is the most commonly used and simplest method to solve concurrency problems in Java. Synchronized has three main functions: Ensure that threads are mutually exclusive access synchronization code Ensure that the modification of shared variables can be seen in time Effectively solve the reordering problem ...

Posted by redgtsviper on Sat, 04 Dec 2021 21:33:42 -0800