You can understand it at a glance s c o p e . scope. scope.apply For me, a complete novice in the front-end, I still know little about Javascript. If I want to get started with angular JS directly, I encounter a lot of resistance. However, I believe that as long as we work hard, […]
Tag: ply
[Use hutool to simply demonstrate the front-end and back-end encryption and decryption processes]
1. Process: ① The front end uses AES to encrypt the data, encrypts the AES KEY with RSA, and finally uses SM4 to encrypt the data structure and sends it to the back end. ② The backend uses the agreed SM4 encrypted seed to decrypt the request data structure; uses the RSA private key to […]
How to correctly comply with Python coding standards
Foreword There is no rule without rules, and the same is true for code. This article will introduce some of the more commonly used Python code specifications that you follow when doing your own projects. Naming Case Module name writing: module_name Package name writing: package_name Class name: ClassName Method name: method_name Exception name: ExceptionName Function […]
GIS Tool 01- [Gaussian Plume] Apply java in GIS to implement model calculations
1 Simulation effect example 2 Gaussian model 2.1 Gaussian smoke model In sudden leakage accidents, pollution sources often suddenly release a large amount of harmful gases in a short period of time. At this time, the Gaussian puff model is suitable for solving the ground pollution concentration. The puff model assumes that the volume of […]
[Update] C language simply simulates Gaussian ants: random walk problem (compressed version)
At the request of some people, the number of lines of code has been violently compressed. If it is not easy to read, please see [Update] C language to simply simulate Gaussian ants: random walk problem #define _CRT_SECURE_NO_WARNINGS #include <stdio.h> #include <string.h> #include <stdlib.h> #include <math.h> #include <Windows.h> #include <time.h> #include “unistd.h” #define NumberOfAnts 100///Constant […]
Springboot+jpa simply builds the environment
1. Packages that may be needed: <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>jakarta.persistence</groupId> <artifactId>jakarta.persistence-api</artifactId> <version>2.2.3</version> </dependency> <!– jap configuration –> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-jpa</artifactId> <version>2.3.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> 2. Environment preparation jdk 8 IDEA 2020 mysql 8 3. Simple use 1. Sorting of springboot JPA built-in sorting and paging: Sort sort =Sort.by(Sort.Direction.ASC,”id”); //Due to version […]
Application of C++ prefix sum algorithm: Maximizing the minimum number of power supply stations in the city
Basic knowledge points involved in this article C++ algorithm: principles, source code and test cases of prefix sum, prefix product, prefix XOR including course videos dichotomy Title Give you an integer array stations with subscripts starting from 0 and length n, where stations[i] represents the number of power supply stations in the i-th city. Each […]
33 concepts JavaScript developers should understand 6-this, call, apply and bind
33 concepts JavaScript developers should understand 6-this, call, apply and bind Directory call stack primitive type Value types and reference types Implicit, explicit, nominal and duck typing == and ===, typeof and instanceof this, call, apply and bind Function scope, block scope and lexical scope Closure Higher order functions such as map, reduce, filter etc. […]
[Update] C language simply simulates Gaussian ants: random walk problem
Previous article Portal: C language simply simulates Gaussian ants: random walk problem (graphical) 1. Update content Note: The code shared in the previous article will not be repeated here. 1. Fixed coordinate system In C language, we can use printf to change the position of the cursor, thereby changing the starting position of printing. When […]
C language simply simulates Gaussian ants: random walk problem (graphical)
Table of Contents 1. Creative inspiration 2. Background and requirements (1) Background requirements (2) Topic requirements (3) This code 3. Main ideas and code (1) Random number generation (2) Processing of one-dimensional motion (3) Processing of two-dimensional motion (4) Output color (5) unistd.h code 4. Complete code 5. Display of running results (1) One-dimensional simulation […]