Programmer Group

1, Overview When I first learned stata, I was quite confused about the logic of stata output, because when I learned python and cpp, the output functions were very simple, and the common commands of statac such as asdoc, outreg2, logout and esttab were often unclear when they jumped out, and I didn't know why they were used in the code. This a ...

Introduction: MongoDB is a very promising database, and MongoDB officially locates itself as a generic database, which is somewhat like MySQL. Although its popularity is far from the level of MySQL, there is one possible inappropriate comparison. Like MySQL N years ago, MongoDB will become stronger and more popular over time. Due to the comple ...

Redux learning notes There is no necessary relationship between redux and react. redux can be applied to various frameworks, including jquery and even js. However, redux and react are more matched. redux also launched react redux, which is specially used for react. 1. Overview of Redux Redux is a JavaScript container for global state managem ...

In the development and testing environment, we usually build a single instance of Redis to meet the development and testing requirements. However, in the production environment, if there are high requirements for availability and reliability, we need to introduce Redis cluster scheme. Although major cloud platforms now provide caching services ...

file File Stream Files operate as streams in programs flow The path through which data travels between data sources (files) and programs (memory) Input stream: Path of data from data source (file) to program (memory)Output stream: Path of data from program (memory) to data source (file) Common file operations Create file object related ...

HTML5 final assignment: website design of snack official website - making final finished food assignment on html page of snack official website (6 pages)_ Snack web design final assignment Common web design topics include individuals, food, companies, schools, tourism, e-commerce, pets, electrical appliances, tea, home, hotels, dance, anima ...

summaryEach fluent project contains a pubspec.yaml file, commonly known as pubspec. When creating a new fluent project, this file will be generated in the project root directory to specify the dependencies required by the project, such as a specific package (and its version), font or image file. It also specifies other requirements, such as dep ...

5. Collection thread safety Thread unsafe demo for collection ArrayListpackage com.codetip.codejuc.juc.conllections; import java.util.ArrayList; import java.util.List; import java.util.UUID; public class ThreadArrayList { public static void main(String[] args) { List<String> list = new ArrayList<>(); for ...

Today, I will start to run the distributed machine learning paper experiment. Here I will introduce the common data sets of the paper (because my research field is distributed machine learning, the data sets listed below may be biased towards this aspect. Just refer to children's shoes in other directions). 1. CV dataset (1)FEMINIST Task: handw ...

Before testing the L1 cache and L2 cache respectively, make some preparations for the class and database. PoJo class: 　　Employee.java package com.atguigu.mybatis.bean; /** * @author xiaoyi * @create 2021-11-21-21:06 */ public class Employee { private Integer id; private String lastName; private char gender; private String ...