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The basic steps of the crawler: get the url, parse the web page and find the required content; data processing; save. Knowledge points: (1) generally, the url of the same type of web page has certain rules, so you need to pay attention to observation when crawling, such as scenic spots Second pages: https://travel.qunar.com/p-cs ...

Initialization project $ npm init rust-webpack web_assembly_demo npx: 18 Installation successful, time 3.989 second Rust + WebAssembly + Webpack = ️ Installed dependencies Install Web dependency $ yarn yarn install v1.19.1 warning package.json: No license field info No lockfile found. warning package-lock.json found. Your project contains lo ...

Recursively generate a Menu as shown in the figure, write two class data model menus, and create a tree menuitree. This is achieved through the following process: 1. First get all root nodes from the menu data. 2. Establish secondary subtrees for root nodes and splice them. 3. Recursively establish a secondary subtree for the child node and ...

1. Overview The company is currently documenting the project, and documentation is critical to building the REST API.In this article, I will introduce Spring Doc, a tool that simplifies the generation and maintenance of API documents for Spring Boot 1.x and 2.x applications based on the OpenAPI 3 specification. 2. Set up springdoc-openapi If yo ...

Knowledge points: 1. User defined response information 2. Return to Json I. General Situation We all know that when a browser makes a request, the server will give a response. This response includes the returned content type, status code, server version, etc. The following picture: If we don't modify the response information ...

Source library of this article: program-in-chinese/quan4-highlighter Syntax highlighting is a basic function of a development environment. This paper attempts to use the previous "circle 4" language (see details The implementation of "cycle 4" by Antlr4+JavaScript in programming language experiment )Write a highlighted plug- ...

Application scenario Regularly request the website / API, judge whether the service is available and whether the website is down according to the request response, and send a SMS to inform the administrator when there is a down time engineering service Operation platform: Alibaba cloud functional computingDevelopment language: Python 3 (small f ...

addEventListener custom event in JavaScript In js events, we first think of the common events such as click, dblclick, mouseover, mouseout, mouseenter, mouseleave, mousedown, mouseup, mousemove, wheel, context menu (when we click the right mouse button). Sometimes these predefined events can not meet our needs when we provide sdk for the third ...

First look at the effect: I don't like paper clips. In the past, I only put an invisible picture at the beginning of the web page, but later I found it had no effect. Now let's start: Raw materials: GetwxLink WeChat public address:   Step 1: bind domain name First login WeChat public platform into the "pub ...

Preface Text and pictures of the text come from the network for learning and communication purposes only. They do not have any commercial use. Copyright is owned by the original author. If you have any questions, please contact us in time for processing. Author: Star Ango, AirPython PS: If you need Python learning materials for your child, clic ...