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This blog Uncle Cat's Blog , reprint please state sourceRead this for about "15 minutes" Readable Population: Java Intermediate Learn notes, take a two-day break (actually doing a simulation project in real life), occasionally think about what you should do on earth, is it really meaningful to yourself or society? Photo on Visual hun ...

  1. Background introduction In multi-topic crawlers, we usually first analyze the URL characteristics of the website (focusing on the list page), then pre-set keywords according to the project requirements, and precisely control the crawling url, or seed url. 1.1. Analysis I There are many url s ...

First of all, this article will not go deep into the underlying source code in detail, just based on annotations and configuration to talk about the use of spring, don't underestimate the basis, to ensure that you have unused annotations and configuration, go. Let's start with a maven project, introducing spring files, which you don't like to d ...

In most machine learning projects, the data you are working with is unlikely to be in the right format to generate the optimal model.There are many steps to transform data, such as classifying variable encoding, feature scaling, and normalization.The preprocessing module of Scikit-learn contains built-in functions to support these common transf ...

In webform, the process of validation is roughly as follows:     In AOP:     In Filter:     AuthorizeAttribute permission validation After login, you have the right to control. Some pages need user login to access. You need to add a validation to the visiting pages, and you can't use every action once. 1. Write a Custom Authori ...

Preface   What is a D ball??? D-ball is an industry ecological value sharing platform based on block chain. What on earth is this D-ball for??? If you're interested, you can. Click D ball. Detailed understanding.   Let's not talk about this. Let's talk about how to realize the animation of D b ...

Catalog 1. The Essence of web Framework and Custom web Framework 2. Simple web Framework 3. web Framework for Returning HTML Files 4. Advanced web Framework for Returning Static Files 5. Functional Advanced web Framework 6. Higher Edition (Multithread Edition) web Framework 7. M ...

I. Summary of Basic Knowledge 1. Using pandas to read and write Excel files 2. Using pandas to read and write XML files 2. Begin to use your hands and brains 1. Using Python to Read and Write Excel Read, using the ExcelFile() method of the Pandas library. Write, use Code import pandas as pd import ...

C++ is a good programming language. At the same time, C++ is a rugged road. I want to witness my growth here with you. I will share some cases, source code and learning experience with you from time to time every day. Case 1: Title Description: Enter a string to determine how many strings there are, ...

Grape Official documents DUMP keySerialize a given key and return the serialized value, which can be deserialized to the Redis key using the RESTORE command.The values generated by serialization have the following characteristics: It has a 64-bit checksum for error detection, and RESTORE checks the checksum before deserializing it. The encodi ...