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100 python hands-on small programs -- a shortcut for python to get started quickly

Address: https://www.runoob.com/python/python-100-examples.html T1: Topic: there are four numbers: 1, 2, 3 and 4. How many three digits that are diff...
15:38 6 November 2019

PTA 7-4 insertion of ordered list (20 points)

Given an increasing ordered list L (leading node, element is integer), a program is written to insert a new integer into L, and keep the order of L T...
15:13 6 November 2019

List content auto scroll up (native JS)

Effect display (mouse in, roll stop; mouse out, roll continue) Realization principle 1. html structure: the core is ul > Li, and the outer layer of...
14:15 6 November 2019

Linux operation command df

Home page of personal blog (click to view details)-- https://blog.51cto.com/11495268Linux Shell command directory overview (click for details)-- http...
14:06 6 November 2019

centos nginx https configuration

1. What if you want to configure a domain name to a specified directory server { listen 80; server_name Change your domain name here,for example baidu...
13:51 6 November 2019

Python foundation object oriented Foundation

Article directory 1. Furniture - Furniture 2. Furniture - house 3. Place furniture - add furniture 4. Soldier assault - guns 5. Soldiers assault - so...
13:33 6 November 2019

How to implement modular loading of Web pack

The module specifications supported by webpack are AMD ,CommonJS,ES2015 import Such norms. No matter what kind of specification, it can be roughly di...
13:14 6 November 2019

Notes - Java foundation advanced 2

Set set import java.util.*; public class HashSetDemo{ public static void main(String[] args){ //Features of Set interface //Is a collection without in...
12:52 6 November 2019

A self encoder for eliminating noise based on keras

primary coverage In this paper, we mainly introduce the implementation of the noise free self encoder based on keras. In fact, for a common autoencod...
12:45 6 November 2019

Intelligent tree auto brush online course script

Intelligent tree auto brush Video Script Summary Problem pop-up Click on the fluent sentences All code Summary As the website is updated, the pop-up ...
12:10 6 November 2019

Installation of HBase on Centos7 and configuration of Eclipse+Maven

I. configuration process of Eclipse+Maven 1. Install and configure JDK Configure the JDK environment on Windows 2. Install Eclipse 3. Install Maven E...
11:59 6 November 2019

Press the / atcoder and rock paper (AtCoder-2141)

Problem Description AtCoDeer the deer and his friend TopCoDeer is playing a game. The game consists of N turns. In each turn, each player plays one o...
11:57 6 November 2019

Implementation of Swoole Redis connection pool

This article only implements a Redis connection pool, which is too short. By the way, integrate the previous several articles.These points are roughly...
11:50 6 November 2019

java.io.IOException: unexpected end of stream on Connection exception resolution

<-- HTTP FAILED: java.io.IOException: unexpected end of stream on Connection 05-23 10:16:51.955 W/System.err( 992): java.io.IUTF-8...
11:37 6 November 2019

The sixth Blue Bridge Cup group a C / C + + national competition in 2015

Title: magic square of fourth order Fill the numbers from 1 to 16 into the 4x4 square, so that the sum of rows, columns and two diagonals are equal, ...
11:06 6 November 2019

The design of Java immutable class

1.1 immutable class Immutable class refers to a class whose state cannot be modified after an instance is created. Their instance information is prov...
10:33 6 November 2019

Study and organize the Boston house price prediction model GridSearchCV

coding: utf-8 import numpy as np import pandas as pd #Read data, preprocessing data = pd.read_csv('housing.csv') prices = data['MEDV&#...
10:31 6 November 2019

Python basic object-oriented features

Article directory 1. Do not use inheritance to develop animals and dogs 2. Use inheritance to develop animals and dogs 3. Transitivity of inheritance...
10:14 6 November 2019

Java annotates the specified string of Word

This article describes how to annotate a specified string in a Word document in a Java program. Preceding text In, it mainly introduces the methods of...
10:02 6 November 2019

Spring series six: the use of spring JDBC template in Dao

concept The main function of JDBC template in Spring is to realize data interaction. Next, we will use JDBC template to write test cases in dao layer ...
10:00 6 November 2019

spring cloud microservice architecture b2b2c e-commerce - common service project construction process

We will analyze the whole project of common service, record the whole construction process, and let more people to learn. First, before building the c...
9:59 6 November 2019

Flink getting started state update

There is such a need to count the number of times a line is clicked every hour, It needs to write statistics to redis every 30 seconds, and use the S...
9:43 6 November 2019

A detailed explanation of how the generated token of jwt authentication is passed back to the backend and parsed

token backend parsing after jwt authentication generation First, the front end sends the token The location of token headers {'authorization&#039...
9:23 6 November 2019

The most complete pip use guide, 50% you may not have used it

All Python developers know that Python is so popular, which can stand out among many high-level languages. In addition to its simple syntax and easy t...
8:16 6 November 2019

podman pilot test - comparison with docker

1. What is docker? Docker is an open source application container engine, which belongs to the encapsulation of Linux containers. Docker provides a s...
5:12 6 November 2019

Common skills of unit test (PHPUnit + Laravel)

1. Data provider To provide parameters and results, use the @ dataProvider annotation to specify which data provider method to use. For example, to ch...
4:19 6 November 2019

Redis -- delay queue

Redis's list data structure is often used as an asynchronous message queue. rpush/lpush is used to enter the queue and lpop/rpop is used to exit...
4:18 6 November 2019

Regular expression and document editor sed of Linux O & M Yunsheng notes

Overview of regular expressions It uses a single character to describe and match a series of strings that conform to the rules of a statement. It is ...
4:11 6 November 2019

Mybatis source code mybatis excel framework

As we introduced in the previous chapter, Mybatis will convert all database operations into iBatis programming model, and operate the database through...
22:58 5 November 2019

[springboot development monomer web shop] 2. Mybatis Generator generates common mapper

Mybatis Generator tool After we start a new project, we usually have to write a lot of entity/pojo/dto/mapper/dao... Most of the R & D brothers wi...
19:42 5 November 2019