Introduction to crawler

preface This blog is used to record the learning process. It will be updated and corrected continuously. I hope you can correct your mistakes. The case studied in this paper is: crawling the scoring and evaluation information of Douban film for data analysis. 1, What you need to master before learning reptiles We entered Douban's offi ...

Posted on Sun, 26 Sep 2021 21:24:54 -0400 by dub

VUE - super detailed food items - personal data

Brief introduction The last one was about food Jay Login and registration Today, we will continue to write personal data, get the changed information on the back end, and render it to the personal information Edit profile edit.vue component In the edit.vue component of editing personal data, imgMaxWidth in the upload img sub compone ...

Posted on Sun, 26 Sep 2021 19:14:24 -0400 by bfuzze_98

Client-side Rendering Service-side Rendering and Code Implementation

1 Definition 1.1 Client Rendering Prior to this, the page rendering process: Browser requests an HTML textRendering process parses HTML text to build DOM treeWhile parsing HTML, if you encounter inline styles or style scripts, download the build style rules, and if you encounter JavaScript scripts, download and execute themThe rendering proc ...

Posted on Sun, 26 Sep 2021 12:18:17 -0400 by azsolo

The El radio group default selection of element UI is invalid or the anti display is invalid

Confusing operation of El radio group: label and label When learning El radio group of element UI today, I found that the default value setting of El radio group is invalid, but clicking other radio boxes can switch successfully. In the use of the radio radio radio box on the element UI official website, the basic usage is label, and the value ...

Posted on Sat, 25 Sep 2021 22:23:42 -0400 by glueater

Java web Learning day01html tag

Shortcut key Comment ctrl+shift+/ Delete ctrl+x Java SE C/S Client/Server Java web Browser/Server Web page components: Content (structure): the data that can be seen in the page is generally displayed through html technology Presentation: the presentation form of content on the page, such as layout, color, size, etc., is generally re ...

Posted on Sat, 25 Sep 2021 02:29:16 -0400 by Joeker

Vue project home page

1. Project description         1. This item is a front and rear end separated item;         2. vue+ES6+   The latest front-end technologies such as element ui;         3. The project includes several sub modules such as merchant, commodity information, user, login and regist ...

Posted on Fri, 24 Sep 2021 07:33:23 -0400 by turpentyne

Notes and summary of jQuery

1. Use of jquery The jQuery library is a JavaScript file. We can directly reference it in HTML pages through script tags, with the same syntax as referencing our own external JavaScript script files. <head> <script src="jquery-1.11.1.js"></script> </head> 2. Document ready event The document ready event is actua ...

Posted on Fri, 24 Sep 2021 06:43:00 -0400 by Lars Berg

Give you a summary of some questions about object-oriented, closure function and prototype chain. Don't say much. Go directly to dry goods!!!

            Welcome to my knowledge paradise. I hope these questions are helpful to you. 1. How to create objects? 1) Bind properties and methods directly to objects 2) Create objects by literal 3) Factory mode 4) Constructor 5) Prototype object 6) Mixed mode (constructor + prototy ...

Posted on Thu, 23 Sep 2021 20:49:33 -0400 by kid85

JavaScrip zero basics summary (basic reference types)

Contents of this chapter Understanding objectBasic JavaScript data typeRaw value and raw value wrapper type Date Overview: Date type saves the Date as the number of milliseconds since midnight on January 1, 1970 coordinated universal time. Using this storage format, Date type can accurately represent the years after January 1, 1971 Create a ...

Posted on Thu, 23 Sep 2021 08:54:37 -0400 by dechamp

vue3.0 manual encapsulation message prompt box

1. Usage scenario There are still many scenarios, such as common login, some functions, and ajax that fails to send can be prompted with a pop-up box 2. Prompt component message.vue <template> <div class="xtx-message" :style="style[type]"> <!-- The style is bound above --> <!-- Different prompt icons chang ...

Posted on Thu, 23 Sep 2021 05:50:40 -0400 by zimick