Programmer Help

How to climb: Find the website you want to crawl, for example https://sz.meituan.com/meishi/ (target website of this crawl) Analyze whether this web page is dynamic or static (dynamic and static web pages are not explained here, and students can understand Baidu) If the web page is static, you can direc ...

preface   There is a cloud in the old saying: Tao is the spirit of art, and art is the body of Tao; Tao is the rule of art, and art leads to Tao. Among them, "Tao" refers to "law, truth and theory", and "technique" refers to "method, skill and technology&quot ...

1. Preface In Java development, in order to avoid too many magic values, we use enumeration classes to encapsulate some static state codes. However, it's not so smooth to return the meaning of these enumerations to the front end correctly and comprehensively. We usually use the Jackson class library to serialize objects into JSON. Today, we'll ...

Project experience addressFree video tutorial Introduction to the game Lucky fruit machine is an arcade game. The game interface is made up of 24 squares, each of which has a different fruit figure and a small lamp. Players use the game currency to select the target they want to bet on. When they press the start button, the small lamp starts to ...

This article starts with WeChat official account of vivo Internet technology. Link: https://mp.weixin.qq.com/s/EHomjBy4Tvm8u962J6ZgsA By Sun Daxiang Google started with Android 6.0 and provided an open fingerprint identification API. This article can help developers access the basic functions of fingerprint verification, and provide the f ...

1 product specification data structure 1.1spu and sku SPU: standard product uint, a set of commodities with common properties SKU: stock keeping unit. Each product in the spu product set is subdivided according to its specific characteristics 1.2. Database design and analysis 1.2.1. Thinking and ...

demand In the previous section, we built several service modules, User, Order and Pay, which communicate with each other directly to access objects. In the production environment, we generally require users to log in and authorize before performing related operations. If each microservice does a set o ...

ASP.NET The core introduces the Options mode, which uses classes to represent related setting groups. To put it simply, a strongly typed class is used to express configuration items, which brings many benefits. The dependency injection of the system is utilized, and the configuration system can also be utilized. It allows us to directly use a ...

One: Storytelling After reading the official documents and reading some Newtonsoft source code, I have a new understanding of it. First, I summarize six super-classical and practical features and share them with you. Say nothing more. Let's have a look at them. 2. Characteristic analysis 1. Code Formatting If you use it directly JsonConvert.Ser ...

In the last blog, I introduced how to use keras to perform multi classification tasks for a given dataset. 100% classification accuracy verifies the feasibility of the classification model and the accuracy of the data set. Multi classification of [keras] one dimensional convolutional neural network ...