Programmer Group

1 function 1.1 function basis definition def Function name(): Code 1 Code 2 ... call Function name ()Documentation for functions def Function name(): """ Function description document """ View the documentation for the function help(Function name) 1.2 scope of variable local variable The so-called local ...

         Because the single chip microcomputer can not directly drive the motor, it is necessary to add a motor drive module between them. The L298N motor drive module was used in the previous article. Now we recommend a new motor drive module. It is much easier to use than L298N, and it takes up a small ...

The initial contact programming can be directly used. Instead of the large piles of books on the front floors, they may not be able to help you write code. If you don't say, they may directly persuade you to retreat. First, look at the problem. It shows that you have ideas and can figure out all the problems. Then there is a very simple method ...

Preface: Hello, ladies and gentlemen, I'm running like a snail rz. Of course you can call me Snail Jun. I'm a beginner who has studied Java for more than half a year. At the same time, I have a great dream that I will become an excellent Java architect one day. This Mybatis Basic Learning series is used to record the whole process of ...

preface When using an array, remember that the subscript 0 is the first Subscript 0 is the first Subscript 0 is the first!!! I've thought about this sentence for a long time, and I think it's best to put it at the beginning This chapter is mainly about arrays. In actual use, if we want to declare a large number of data of the same data ...

catalogue 1. Operator classification: 2. Arithmetic operators 3. Shift operator 3.1 shift left operator 3.2 shift right operator 4. Bitwise operator 5. Assignment operator 6. Monocular operator   6.1 introduction to monocular operators 6.2 sizeof and arrays //I haven't finished yet! 1. Operator classification: arithmetic ope ...

prefaceToday, I want to share the context package with you. After a year of precipitation, I will start again and analyze it from the perspective of source code based on Go1.17.1. However, the difference this time is that I intend to start with the introduction, because most novice readers want to know how to use it first, and then they will fo ...

Cereal mall project (learning note 1) Cereal mall project (learning note 2) Chapter II: initialization project catalogue Chapter II: initialization project 1, Initialize database 2, Introduction of Renren open source 1. Download Ren fast and Ren fast Vue 2. Introduce Ren fast in the backend 3. Introduce the front-end Ren fast Vue 4. T ...

1. Users & User Groups Linux is a multi-user and multi-task operating system. The Linux system supports multiple users to log on at the same time. Different users can perform different tasks within their permissions without affecting each other. Corresponding relationships between users and user groups: One-to-one: A user can exist in a ...

This article mainly introduces the methods of accessing some custom attributes of python classes and the dynamic attribute setting of classes, that is, python's built-in function setattr(). Custom attribute access What are attributes? Are the following examples a and b attributes? No, they are global variables. An attribute is a member variab ...