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preface Each application initializes an application class when it is started. We can do some initialization operations in this class, such as the initialization of a third-party sdk. After the component project is implemented, different business modules also need to do some initialization operations when the application is started. This involv ...

preface Use requests+xpath to crawl Douban film reviews. Don't talk too much nonsense. Let's start happily~ development tool **Python version: * * 3.6.4 Related modules: requests module; jieba module; pandas module numpy module Pyecarts module; And some Python built-in modules. Environment construction Install Python and add it to ...

catalogue 1. Problem description 2. Problem solving analysis 2.1 matrix representation of calendar of each month   2.2 handling of holidays and compensatory public holidays 2.3 find the maximum rectangle 2.3.1 violent search 2.3.2 sliding window search 3. Code and test 4. Postscript 1. Problem description   2. Problem solv ...

Why do distributed transactions occur# With the rapid development of business, website system often evolves from single architecture to distributed and micro service architecture, while for database, it changes from stand-alone database architecture to distributed database architecture. At this time, we will split a large application system in ...

Java linked list data structure brush notes summary This article has referred to the labuladong algorithm, and has compiled some notes and thoughts. You can pay attention to his official account. I'm a vegetable 555. I've just started to brush questions. I'll take notes here. Hey hey~ Characteristics of linked list Types of linked lists ...

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it catalogue Tip: Here you can add the general contents to be recorded in this article: For example, with the continuous development of artificial intelligence, machine learning technology i ...

At the beginning, let's take a look at the construction and deployment process in ancient times. Everyone must be familiar with this:The developer compiles, compresses and packages the source code to generate packaging filesUpload the packaged file to the serverObviously, this process is not only cumbersome, but also inefficient. Each release o ...

1, Multiple choice questions 1. A. basic questions. Check the computer hardware system. The core of the computer host includes memory and processor. It will not start without memory 2. B. the queue is a first in first out linear table 3. A. basic questions, review computer knowledge 4. B. basic question. Check the binary conversion. The binary ...

preface Forced consistency and double formatting are the most fatal 1, ESLint? Remember when I first contacted eslint, what was it? How to delete this thing VSCode configuration It is convenient to use the Eslint plug-in of VSCode, so let's install the Eslint plug-in first After the installation is completed, of course, the conf ...

Exercises 1. Calculate the factorial of the input number Loop and recursion (1) Recursion public static int func1(int n){ int res = 1; if(n==1){ return 1; } for (int i = 1; i <= n; i++) { res*=i; } return res; } (2) Recursion Recursive conditions: Recursive calls can be used to reduce the scale of the problem, and the new p ...