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After installing Ubuntu 18.04 on the newly purchased Lenovo ideapad-330C notebook, I found sadly that there is no wireless network, fortunately, the cable can still be used. Then I searched the Internet and found that many people encountered this problem, and some people gave solutions. Reference link: ThinkPad e470c (integrated network card r ...

Train of thought: step 1: request Sword come. Novel site, get two things Novel name -- create a folder with novel name under the same directory of Python program Link address for each chapter of the novel step 1 corresponds to the get uurl() function in the code, which also includes the multithreaded code used to speed up ...

I. overview Volley is a lightweight Android asynchronous network request framework and image loading framework launched by Google. Released at Google I/O 2013. Its applicable scenario is the network operation with small amount of data and frequent communication. Main features: (1) strong expansibi ...

1. Simulated website: Bili bilibili video network: https://passport.bilibili.com/login 2. Development environment This project needs to use io time random selenium PIL Please install the corresponding version of the library as follows. All other libraries are standard libraries. There is n ...

[TOC] rpc client and server of PHP There are many solutions for PHP rpc, and many open rpc frameworks based on PHP code can be seen on composer. There are also many rpc frameworks based on C PHP extension, such as swoole, Yar and grpc. The ready-made framework is very simple to use. Just install and call it directly, I won't say it. Let's just ...

This article describes how to deploy a sharded database with adg function. 1. Environment introduction The roles and database versions of each node are shown in the following table:The instance name is named by the system itself. 2. Create Shard Catalog Database Here we use the silent method to create the directory database on odb01. [oracle@o ...

WebSocket is a single TCP Connect to full duplex Communication protocol. WebSocket communication protocol was approved by IETF As standard RFC 6455 and supplemented by RFC7936. WebSocket API Also be W3C Set as standard. WebSocket makes the data exchange between the client and the server easier, allowing the server to actively push data to the ...

python basic knowledge test In the process of using python, many basic knowledge does not need to be gradually unfamiliar. In order to enhance the familiarity, we do corresponding tests for each basic knowledge point of python, and constantly summarize and review.Knowledge points: Character string lis ...

Download elastic search Create elk user and authorize useradd elk chown -R elk:elk /home/elk/elasticsearch chown -R elk:elk /home/elk/elasticsearch1 chown -R elk:elk /home/elk/elasticsearch2 mkdir -p /home/eladata mkdir -p /var/log/elk chown -R elk:elk /home/eladata chown -R elk:elk /var/log/elk Master node master Extract from elastic search an ...

1. Common current limiting algorithms 1.1 counter algorithm Count the number of requests allowed to pass over a period of time. For example, qps is 100, that is, the number of requests allowed to pass in 1s is 100. Add 1 to each request counter. If the request is rejected more than 100, the counter will clear after 1s, and the counter will be c ...