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数据结构之集合和映射

基于二分搜索树的集合实现集合（Set）的基础概念：数据结构中的集合概念与数学中的集合概念是一样的，集合中的元素是无序且不重复的，一个元素在集合中只会出现一次。集合在逻辑上是一个线性的结构，但在底层中可以采用多种实现，例如链表、二分搜索树及哈希表等。所以集合总的来说是高层次的抽象数据结构，底层实...

2021-01-21 23:47 端碗吹水

初识PHP之MySql数据库操作

输出文本 ?php echo 'Hello World!'; ? 连接MySql数据库 ?php $servername = 'localhost'; $username = '用户名'; $password = '密码'; $dbname = '数据库名称'; // 创建连接 $conn = n...

2021-01-21 23:47 闻语博客

Where does Shenzhen front end web training go? Qianfeng is definitely the best choice

Shenzhen front end Web Where to train ？ In terms of course content , I strongly suggest you go to Qianfeng ！ Because Qianfeng Shenzhen Web The cours...

2021-01-21 23:48 Headline of webmaster

Upgrade mysql5.5 to 5.7

mysql5.5 To upgrade to 5.7 1. download mysql5.7.32 Official download address Link 1 decompression tar xvf mysql.tar.gz mysql/ 2. Enter the old ...

2021-01-21 23:48 Dongdong's brain hole

Initial experience of edge computing k8s cluster superedge

Preface There's always a bunch of student hosts on hand , Machines from all kinds of channels . It's a pain in the management all the time , I don...

2021-01-21 23:49 Li Guobao

Zookeeper of synchronous data in soul gateway

Soul Gateway synchronization data Zookeeper Adjust configuration pom Comment out the original default websocket Synchronization mode , Change it to...

2021-01-21 23:49 A real loser

Redis basic business

If Redis You need to execute a set of commands , To keep the data consistent , Continuity , You need to use transactions （Transaction）, Here are some...

2021-01-21 23:52 Alan.hsiang

A letter to Linux beginners

Hello everyone , I am a Chopin . This article is written for Linux For beginners , I'm going to share some things I should know as a beginner ,...

2021-01-21 23:52 Chopin Linux

How to use docsify to build your own GitHub document?

Installation premise Make sure the computer is installed node and npm Environmental Science . If it's not installed yet , That requires the f...

2021-01-21 23:54 Qinhuai grocery store

Remote login k8s cluster node using container escape

One day , Some fish say they want to eat , therefore ...... Li Guobao ： Edge of computing k8s colony SuperEdge First experience zhuanlan.zhihu.co...

2021-01-21 23:54 Li Guobao

[Vue] multiple text stroke component

design sketch ! effect Image 1 install yarn add vue stroke text npm i vue stroke text introduce import StrokeText from 'vue stroke text' // ...

2021-01-21 23:54 I am a good person.

Redis source code analysis of the compressed list (ziplist)

I was going to use only one article to explain Redis Medium list, In the actual writing process, I found that Redis There are many kinds of list The ...

2021-01-21 23:55 xindoo

Quick list of redis source code analysis

What is the quicklist, Last time I said ziplist The time complexity of each change is very high , Because you have to regenerate a new ziplist As an ...

2021-01-21 23:55 xindoo

Skip list of redis source code analysis

I'm going to change my job recently , Through the window of the alternation of old and new work, I relaxed , So the column dragged on , But I don't ...

2021-01-21 23:55 xindoo

Redis source code analysis of robj (redisobject)

We are Previous post Link 1 I've learned a bit about it in Redis The data structure of , In especial dict It's said in , You can put redis As a...

2021-01-21 23:55 xindoo

Remote login k8s cluster node using container escape

One day , Some fish say they want to eat , therefore ...... Li Guobao ： Edge of computing k8s colony SuperEdge First experience zhuanlan.zhihu.co...

2021-01-21 23:56 bbsmax

Set and mapping of data structure

Set implementation based on binary search tree aggregate （Set） The basic concept of ： The concept of set in data structure is the same as that in...

2021-01-21 23:56 Blow water in a bowl

First knowledge of MySQL database operation in PHP

The output text ?php echo 'Hello World!'; ? Connect MySql database ?php $servername = 'localhost'; $username = ' user name '; $password = ' passw...

2021-01-21 23:57 Wen Yu blog

Dubbo中的统一契约是如何实现的？

写在前面之前，很多小伙伴私信我：如何才能快速的掌握Dubbo的核心原理和源码。所以，我写了一篇《我是如何在短期内快速掌握Dubbo的原理和源码的（纯干货）？ Dubbo 》。对于Dubbo的源码解析系列文章，我也在思考如何让源码解析的文章变得更加简单易懂，所以，我调整了写Dubbo源码解析文章...

2021-01-22 00:47 冰河团队