Basic knowledge of programmingThe following are some of the basics of programming:
** 1. Computer language type **
1. ** Machine language **
- It was a machine-oriented language that used a set of machine instructions that the computer could directly recognize and execute. Its shortcomings were obvious. The programs were all 0 and 1 instruction codes, which were intuitive and error-prone. Moreover, the machine languages of different models of computers were not interlinked. The programs written on one computer according to its machine instructions could not be executed on another computer.
2. ** Assembly language **
- It was also a machine-oriented language, also known as symbolic language, which used symbols to replace machine instruction codes. It overcame the shortcomings of machine language, which was difficult to read, difficult to write, difficult to remember, and error-prone. It replaced the instruction code with English annotations, letters, numbers, and other symbols that were similar to the actual meaning of the code instructions. Assembly language was used to compile system software and process control software. The target program took up less memory space and ran fast, but it was the control information of the hardware operation like machine instructions. It was more cumbersome and time-consuming to use, and its commonality was poor.
3. ** Advanced Language **
- This is a language for users, similar to natural language, and can be accepted and executed by computers.
** 2. Basic Elements of Code (Python as an example)**
1. ** Commonly used phrases and keywords **
- For Python, it basically consisted of a few commonly used statements and some keywords to form complex code. The longer codes, even if they had thousands of lines, were also written by repeating these basic elements, but the logical functions were different.
2. ** Variant naming **
- The name of the variable could be defined by the programmer. In order to facilitate the reading and maintenance of the program when it was large, it was generally replaced with the English contraction of the function to be implemented. For example, the storage voltage value could be defined as a variable named VoltageValue or VoltVal.
** 3. Basic Concepts in Code **
1. ** Variant **: Used to store data. Its value can be changed during the program's operation.
2. ** Condition statement **: Executes different code blocks according to different conditions, such as the if-elif- else statement in Python.
3. ** Loop **: You can execute a code repeatedly, such as for loop and while loop.
4. ** Function **: Encapsulated a piece of code that can be reused, making it easy to call and improving the reusage of the code.
5. ** Array/List **: It is used to store multiple data elements. You can easily operate on these elements, such as accessing, modifying, adding, or deleting elements.
6. ** Dictionary-object **: Store data in the form of key-value pairs, which makes it convenient to obtain the corresponding value according to the key.
** 4. Code Execution **
1. ** The way codes are recognized and run by computers **
- Different types of computer languages had different recognition and operation methods. Machine language was directly recognized and executed by the computer. Assembly language needed to be converted into machine language by an assemble before it could be executed. High-level languages needed to be converted into machine language by a translator or interpreter before it could be executed.
2. ** Code Writing and Running Condition **
- Before writing code, you might need to set up the development environment, and this process might run into problems such as conflict of dependence and version mismatches. After writing the code, run the code in the corresponding way (such as modifying the file name extension in Python) to see the results.
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Knowledge and Experience of programmingIt was an important tool that connected reality and virtual reality, innovation and practice. With the development of technology, such as artificial intelligence and big data technology, the importance of programming became increasingly prominent.
From the perspective of learning programming, for junior high school students, learning programming could satisfy their curiosity about technology and help them gain an advantage in their future studies and life. The cultivation of programming thinking could make the learner more organized and good at thinking when facing complex problems. The process of trial and error and correction in programming practice was also an important way to cultivate perseverance and the courage to explore.
Different programming languages had different characteristics. Python's concise and easy-to-learn grammar, rich resources, and a wide range of applications made it the first choice for many beginners (including junior high school students). It could meet the different needs from entry to in-depth learning. Scratch was famous for its unique building block programming method. It was suitable for primary school students. By dragging and pulling building blocks, they could create animations, games, and interaction stories, greatly reducing the programming threshold. programming languages such as javelin were also favored because of their unique charm and practicality.
There were some scientific and practical ways to learn programming. As programming was a very practical subject, one needed to focus on combining theoretical knowledge with practical operations. For example, by writing Mini programs and participating in project practice, one could deepen their understanding of programming concepts and application skills. The learning process should be gradual. You can set learning goals in stages and review them after each stage is completed. You can also join a programming community or forum to exchange ideas and share experiences with others. This way, you can broaden your horizons, inspire inspiration, and receive timely help and support when you encounter difficulties.
Learning to program is not without challenges. Learners may encounter difficulties in understanding complex programming concepts, solving difficult code problems, and maintaining motivation. In the face of these challenges, one needed to maintain a positive and optimistic attitude, be brave enough to try and explore, and learn to seek help. They needed to discuss solutions with teachers and classmates, and improve their programming skills, willpower, and ability to solve problems in the process of overcoming challenges.
In short, programming was of great value in modern society. Only by choosing the right language and using scientific learning methods and actively facing the challenges in the learning process could one better master programming skills.
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What is programming? What does programming mean?It was the process of letting a computer solve a certain problem on behalf of a certain calculation system, and making the calculation system operate according to the calculation method, and finally obtain the corresponding result. In order for the computer to understand human intentions, humans needed to tell the computer the ideas, methods, and means to solve the problem in a form that the computer could understand. The process of communication between humans and the computing system was programming. The programming here was not necessarily for computer programs. Any system with logical computing power could be considered programming.
The programming class was a course that taught knowledge and skills related to programming. In the programming class, students would learn the basic grammar of programming languages (such as data types, operators, branches, and cycles, etc.), use the programming language to implement basic data structures (such as sequence tables, linked lists, etc.), improve their programming thinking and problem solving skills by brushing algorithm questions, and carry out practical projects. For children's programming, they would use more interesting and child-friendly methods, such as using beautiful game screens, cute animated characters, and a standardized programming interface. They would let children learn to break down complex problems into simple steps and write code to execute these steps, thereby cultivating logical thinking, computational thinking, and creative thinking.
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The best age to learn programming. Is it useful to learn programming?Any age is suitable for learning programming. However, 20 to 30 years old was the best age to learn programming. At this age, the brain's logical thinking ability, learning ability, and ability to accept new things were at a relatively high level. Most people at this stage had less life responsibilities and had more time and energy to invest in learning. The programming skills developed at this age could continue to benefit in his future career.
Learning programming was very useful. In today's digital and information age, programming had become a basic skill. Whether it was in the IT industry or other fields, having the ability to program would greatly enhance one's competitiveness. It could help individuals stand out in their careers and provide more job opportunities and career development paths. In addition, programming was also a very creative activity that could stimulate an individual's innovative thinking and bring more possibilities for career development and personal growth. Moreover, learning programming at different ages had different gains. Early childhood could cultivate logical thinking ability and creativity; primary school could master the basic concepts of programming; middle school and teenagers could learn more in-depth programming knowledge.
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programming robotA programming robot was a type of robot that could be controlled and operated by programming. They usually had a control panel and a base that could be programmed to perform various tasks and actions. Robots can be used for educational purposes to help children and teenagers learn programming and creativity. There were many brands and models of programming robots available on the market, such as Lego Education Family, Matatalab, Mech Master S1, etc. These robots provided easy-to-use graphic programming software and a wealth of learning resources, allowing beginners to easily master programming skills. In addition, programming robots could also develop children's logical thinking, creativity, teamwork, and problem solving skills. In general, programming robots were an interesting and practical tool that could help people learn and apply programming techniques.
AI programmingAI programming referred to the process of using artificial intelligence technology to assist or automatically generate code. For example, with an AI programming assistant like Cursor, an eight-year-old girl could write a chatbot in 45 minutes. In practical applications, some tools such as Cursor, Cline, Continue, Zed, etc. can be used for AI programming. They each have different characteristics, such as model support, interaction details, open source, and cost. And when using AI programming, you can treat it as a programming intern, and humans need to guide it to apply knowledge in the right context. You could also think of Claude/Cursor as an outsource developer. Humans 'job was mainly to manage and point out the right direction. Not only could AI be used to write code, but it could also be used to review code. It could also provide a better context framework for answering questions by adding system prompts or "rules", and it could also interact with it in a variety of ways to solve bugs in the code.
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NC programmingNumerical-control programming was one of the main contents of the preparation stage of Numerical-control processing. The process was the whole process from the part drawings to obtaining the Numerical-control processing program. This included analyzing the part drawings, determining the processing process, calculating the tool path to obtain the tool location data, writing the numerical control processing program, making the control medium, checking the program, and the first piece of trial cutting.
There were two methods of programming for the numerical control processing, manual programming and automatic programming. The various stages of manual programming were completed manually. The programmer used general calculation tools to calculate the tool trajectory and compile instructions manually through trigonometric-function calculation. This method was relatively simple, easy to master, and had great adaptability. It was suitable for non-mold processing parts. The steps included manually completing the numerical control process of the parts, analyzing the parts drawings, making process decisions, and determining the processing route.
In programming, there was also the special function of the user macro program. There were some differences between the user macro program and the normal program. In the user macro program, variables could be used and assigned values. The variables could be calculated, and the program could jump. However, the normal program could only specify a constant, and the constant could not be calculated. The program could only be executed in sequence and could not jump. The function was fixed. The format of the macro program itself was the same as that of the subprogram. It could use normal, variable, calculation, and control commands. For example, in some engineering application scenarios, such as the calculation of circular arc evenly distributed holes, oval processing, etc., the use of macro programs could improve the efficiency of manual programming.
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What is programming?The essence of programming was to let the computer solve a certain problem on behalf of a certain computing system, and to make the computing system operate according to the calculation method to finally obtain the corresponding result. This process was also a process of communication between humans and the computing system. Humans needed to tell the computer the ideas, methods, and means to solve the problem in a form that the computer could understand, so that the computer could work step by step according to the instructions and complete specific tasks. Furthermore, programming was not necessarily targeted at computer programs. Any system with logical computing power could be considered programming.
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programming scratchScratch was a simple graphic programming software developed by MIT. It was programmed in the form of building blocks. It had the feature of visualization, allowing users to quickly create games, stories, animations, tutorial, works of art, and so on. In terms of Scratch programming learning, the learning time for people without a foundation depends on their understanding of programming, which may range from a week to a month. People with a foundation in programming may be able to understand all the content in a week and quickly complete the primary project independently. Learning objectives included mastering the logic of the code area, such as learning the role of time in the program in the event module, learning the use of conditions and cycles in the control module, and many other aspects. After completing these objectives, one could learn Python or C language.
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