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    ROS 2 Foxy Fitzroy (hereinafter referred to as Foxy) was officially released on June 5, 2020. It is an LTS version and is supported until May 2023. This article is mainly based on the official compilation and installation tutorial [1] Complete and document any problems encountered during compilation. ...

kolla ansibel deploy openstack high availability cluster reference resources: https://docs.openstack.org/kolla-ansible/latest/user/quickstart.html kolla installation node requirements: 2 network interfaces 8GB main memory 40GB disk space For the installation of kolla, the target machine is required ...

We know that there are some websites or software that use photos to test the beauty. In fact, this function can be realized by using python. In this article, we use Python to write a beauty test widget. brief introduction There are two ways to realize the beauty test function: one is to write the test function by yourself, and the other is to r ...

1, Foreword Python has many libraries for image processing, such as pilot or OpenCV. Most of the time, it's useless to learn these image processing modules, but you don't know how to use them. Today, I've brought you some art skills to make your art come true. The circle of friends is full of praise. My girlfriend also praises you. How powerful ...

Today I want to introduce to you the crawling and identification of verification code, but only involves the simplest graphic verification code, which is also a common type now. Many people study python and don't know where to start.Many people learn python, master the basic syntax, do not know where to find cases to start.Many people who have ...

Learn the last project of Python: Airplane war games (pure code) In ancient times, those who made great achievements must not only have extraordinary talents, but also perseverance. ——Su Shi Sweet first This time, pygame module in Python is used to complete a small game of aircraft wa ...

Document description: This article is based on [ Official Documents In light of its own practice, there has been a slight reduction in the common installation steps (mainly due to the official consideration of various installation environments, this article is mainly limited to Ubuntu 16.04). system r ...

When we deploy something in an environment without public network, it is often a headache, because we may need a variety of dependency packages, which also have many dependencies. If we don't package and download all the dependency packages at one time, we can understand what Russian dolls are in the process of downloading.. 1, os dependency pa ...

​ Is it out to play airplane games with mobile phones in the AI era? Flying oarPaddle Hub takes you to experience different ways of playing games. Since the birth of the first game in the world, video games need to rely on the handle and buttons. Whether it's PC games or XBOX, PS and other host games, the controller and handle ...

Source network, only for learning, if there is infringement, please contact delete. If we can achieve report automation, we will save a lot of time and complete the work more efficiently. So, how to use python to realize report automation? This article will introduce the common functions of xlwt, xlrd and xlutils, the application of formulas ...