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Experimental questions Basic Operation of Experiment 3 Database (1) Create a database textbook: CREATE database textbook (2) Display and modify the maximum number of connections show variables like "max_connections"; set global max connections = 8; (3) Delete the database textbook drop database textbook Experiment 4 Definition and Mo ...

Catalog 01. Basic concepts: program, process, thread 1.1 Processes and Threads  ​ 02 Thread Creation and Use 2.1 Thread class Two ways to create threads in the 2.2 API 2.2.1 Mode 1 inherits the Thread class ​ 2.2.2 Exercise Common methods in the 2.2.3 Thread class 2.2.4 Thread Scheduling 2.2.5 Implementing Runnable Interface 2.2. ...

​ Summary ​ Previously, Ofter detailed how to write visualization screens from scratch using Vue. Today, we'll show you how to write visualization charts using React. Why are we still learning React? Because of its lightweight nature, visualization charts like antv are all in React, although antv has one viser (React/Vue/Angular th ...

1. Preface The root file system is the first file system mounted after the Linux kernel is started. As described in the previous article, how to use busybox to make the root file system. This article introduces how to make the kernel find the file system after the root file system is successfully made, complete the mount, and enter the system ...

=Generic programming and STL = = technology are explained in detail to explore the deeper use of C + + 1 template 1.1 concept of template Template is to establish a general mold, which greatly improves the reusability Characteristics of formwork: The template cannot be used directly. It is just a frameworkThe universality of templates is n ...

Reference link first [motion control] Apollo 6 MPC of 0_ Controller parsing Apollo MPC OSQP Solver For detailed derivation of vehicle lateral dynamics model, please refer to my other blog Horizontal control principle and core code line by line analysis of Apollo control module Because it is similar to the code and framework of LQR control ...

Hadoop learning 1.Hadoop overview Infrastructure of a distributed systemIt mainly solves the problems of massive data storage and distributed computing 1.1 three major releases of Hadoop The original version of Apache was released in 2006Cloudera integrates many big data frameworks internally, and the corresponding product is CDH releas ...

JAVA objects and polymorphism (object-oriented) Object oriented Foundation A class is equivalent to a template, and an object is an entity created according to the template. A class is an abstract data type, not a real concrete existence. Class properties: member variables and member methods. You can call member methods to make the class perf ...

The original text is reproduced from "Liu Yue's technology blog" https://v3u.cn/a_id_207 Once upon a time, SVG(Scalable Vector Graphics) vector animation was known as a technology cursed by browsers because of poor hardware support (IE) and endless compatibility tuning (Safari). However, today in 2022, everything is different. It is ...

day8 dictionary summary and homework 1, Cognitive dictionary Dictionary and list selection: When you need to save multiple data at the same time, use the list if the meaning of multiple data is the same (there is no need to distinguish); If multiple data have different meanings, use a dictionary Cognitive Dictionary (dict) 1) Is a containe ...