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1. selectors I/O Multiplex Abstraction The selectors module provides a platform-independent abstraction layer on top of platform-specific I/O monitoring functions in select. 1.1 Operational Model The API in selectors is event-based, similar to poll() in selectors.It has multiple implementations, and this module automatically sets the alias Defa ...

Preface When we write crawlers, we often encounter a variety of anti climbing measures. For example, more and more js loading on various large websites is a headache. The data of these websites is not directly accessible like a simple website. We often cannot find the data source. Can we only use selenium to simulate browser access? Of course n ...

After decades of busy, today finally have time to write blog. The previous chapter introduces the content related to the working mode of the template, as well as the templates of all the controls under the FrameWorkElement. Next, I'll show you how to build a simple custom button and learn some details about the control template in the process. ...

_Copyright Statement: This is an original article created by a blogger and may not be reproduced without the permission of the blogger. SQL Server series software is a relational database management system introduced by Microsoft.At a conference in San Francisco on April 16, 2014, Microsoft CEO Satia Nadela officially launched "SQL Ser ...

1, Catalog description ① there is only one root directory in Linux/ ② the contents stored in each directory of Linux are planned, and do not misplace files ③ Linux manages our devices in the form of files, so in Linux system, everything is files Requirement: it is necessary to have a general understanding of what contents are stored in various ...

Using Android Studio to develop executable Java application with interface 1. Create Project and Module Create a new project and then a new module select java library 2. Add Main method and test code package com.example.javareplacecarcols; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; ...

1. installation Version 1.1 v-4.0 requires PHP version above 7.0 1.2 run the following command in the project directory If composer is not installed, install composer first - > http://docs.phpcomposer.com/00-intro.html Under windows environment, if openssl extension is missing is reported, modify php.ini file and open extension=php_openssl. ...

Discard clip: for the rendering of transparent objects, you can discard the clip: void main() { vec4 texColor = texture(texture1, TexCoords); if(texColor.a < 0.1) discard; FragColor = texColor; } Blend: although it's good to discard the clip directly, it can't render a translucent image. We ei ...

It has been several days since "later we" was released. I haven't been to see it. There was a ticket refund incident a few days ago. The theme song of the movie was sung by Eason Chan. I specially looked for the MV of the theme song "we" and watched it. It's still that feeling. That day, I saw an official account of the Pyth ...

Check Nginx's nginx.conf file, and you can see such a message #access_log logs/access.log main; This indicates that the file of the server access log is logs/host.access.log in the format of "main". main format #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$st ...