Programmer Think

catalogue 01 abstract class 1.1 examples of abstract application scenarios 1.2 abstract precautions 1.3 practice of abstract class 1.4 anonymous subclasses of abstract classes 1.5 concrete application of abstraction: template method 1.6 practice of abstract class 01 abstract class With the definition of new subclasses in the inherit ...

Basic data structure 1. Series For a Series, the most commonly used attributes are values, index, name, and dtype s = pd.Series(np.random.randn(5),index=['a','b','c','d','e'],name='This is a Series',dtype='float64') s a -0.152799 b -1.208334 c 0.668842 d 1.547519 e 0.309276 Name: This is a Series, dtype: float64 Accessing Ser ...

Python implementation of regular update of ChromeDriver Selenium, as a UI automation testing framework based on web pages, is deeply loved by developers and occupies a place in the field of automation; Selenium framework, together with its configured tool ChromeDriver, is used to help developers complete all kinds of work. At the same time, th ...

Catalogue of series articles preface CUDA Programming is to use the parallel computing power of GPU equipment to realize the high-speed execution of the program. The optimal setting of CUDA kernel function on the size of Grid and Block can ensure the full application of this parallel computing power of CPU devices. This paper intr ...

Fuzzy Query Using like is called a fuzzy query and is also a type of conditional query that supports% or underscore matching: (% is a special symbol, _is also a special symbol) %: match any number of characters _: Any character. For example: Find names that contain O? mysql> select ename from emp where ename like '%O%'; +-------+ | e ...

Pytorch: Overview of target detection networks, indicator calculation and use of pre-training networks Copyright: Jingmin Wei, Pattern Recognition and Intelligent System, School of Artificial and Intelligence, Huazhong University of Science and Technology Pytorch Tutorial Column Link This tutorial is not commercial and is only for lear ...

Handler is a technology that must be used in Android development. It is also very simple to use. Rewrite handler's handleMessage method in the main thread and send messages through handler's sendMessage() method in the sub thread. The Handler mechanism can be well understood through this figure. There are several roles: ActivityThread, Handler ...

ekucms2.5 local file contains vulnerability - code audit 1, Foreword In order to learn the operation principle of Thinkphp framework and strengthen its own code audit ability, we specially looked for a CMS vulnerability article written by php on the Internet for reproduction and reverse code audit. Vulnerability reference articles are as foll ...

Blog 🔗: https://blog.csdn.net/cPen_web video 🔗: https://www.bilibili.com/video/BV1vK4y1o7jH Variables and labels variable Python variables can be encapsulated in the dictionary and passed to the template in the view function Example: def xxx_view(request): dic = { "Variable 1": "Value 1", "Variable 2": "Value ...

Introduction to mainstream automated testing framework The automation of software testing can generally be divided into three layers * unit testing of code layer * integration testing of interface layer * testing of UI layer 1) Code layer automation For example, this tutorial does not focus on the unit testing of python, which is not the com ...