Programmer Think

From: https://blog.csdn.net/liyanan21/article/details/89320872   Catalog I. Raft algorithm Part of Raft Source Code in Nacos init() 1. Get Raft cluster nodes NamingProxy.getServers() Gets the cluster nodes NamingProxy.refreshSrvIfNeed() Gets node information NamingProxy.refreshServerListFromDisk() Gets cluster node information 2. Raft ...

1. react-hooks concept In React, everything is a component. Components in React are divided into class components and function components. In React, if you need to record the state of a component, it must be a class component.Can function components have the functionality of class components?At this point we need to use hooks.Hook s give ...

ThinkPhp5 framework is a lightweight development framework based on MVC. Its modular construction is simple and effective. Compared with previous versions, it is a subversive change. In this paper, combined with the common functions of some websites, a brief analysis of the basic principles, a small test knife. Compared with the complete develo ...

Brief introduction Let's take a hotel as an example. Let's assume that there are only three seats in a hotel. At first, all three seats are empty. At this time, if three guests come at the same time, the waiter allows them to go in for dinner, and then tells the public that there are no seats available. Later guests had to wait at the door unt ...

Needless to say, the operation of Excel tables requires the introduction of third-party libraries. First, we need to introduce Excel.dll and ICSharpCode.SharpZipLib.dll, both of which can be found online; then we need to introduce System.Data.dll, which can be found under the Editor Data Mono lib mono folder under the installation path of Unity ...

3. Combine View s with Stacks After creating the title view in the previous section, let's add a text view that displays landmark details, such as the name of the park and the state in which it is located. When creating a SwiftUI view, we can describe its content, layout, and behavior in the body property of the view.Since the body property o ...

ShuffleManager (1) In this article, let's take a look at Shuffle Manager, another important module in the spark kernel.Shuffle is arguably one of the most important concepts in distributed computing, which is required for data join ing, aggregation, de-duplication, and so on.On the other hand, one of the main reasons why spark performs better t ...

jvm tools are often used in java applications for some operations. If a java application is deployed in a docker container, how do you use jvm tools? First, look at the docker image used. For example, common openjdk mirrors are divided into jdk and jre. Only the jdk version has jvm tools, so you can use the jdk version of openjdk directly. ...

php-ml is a machine learning library written in PHP. Although we know that Python or C++ provides more libraries for machine learning, in fact, most of them are slightly more complex and configurable, which makes many novices desperate. php-ml is a machine learning library, although it does not have a very large algorithm, but it has the most b ...

Why can't 80% of yard farmers be architects? >    Usually, we use SQL to extract some columns from the database that meet the requi ...