大家好，小编来为大家解答以下问题，二级c语言程序设计和c++语言程序设计有什么区别，二级c语言和二级c++有什么区别，今天让我们一起来看看吧！
如果说最近最火的语言和最古老的语言碰撞会产生什么样的火花呢？在刚刚上大学的小伙伴肯定是有这样的疑问，C语言作为比较古老和底层的语言，一般是作为大学生的必修课，也是计算机课程的第一课，而Python作为高级语言，随着这几年的机器学习、人工智能彻底火出圈了，外行的人也知道Python很牛，那么这最古老的语言和最火的语言之间的区别是什么呢？我们应该如何选择最适合自己的语言呢？
一、语言类型不同
C语言是比较古老的语言，并没有太多高级语言的特性，在语言类型上他属于编译型语言，何为编译型语言，编译型语言就是经过了软件的编译后，生成机器码，然后再由计算机操作系统去运行，他的优点就是执行速度很快，因为他是最接近计算机底层的语言，和计算机交互的时候，效率是很高的，他的缺点就是由于依赖底层的操作系统，所以并不能跨平台，无法做到一处代码，处处编译，他一般用于操作系统或者是驱动等底层的开发，是大学计算机的必修课。而Python或者Java这种属于高级语言，Java是属于解释型语言，但是Python好像介于两者之间，界限并不是划分的特别明显，但是他总体来说属于解释型语言，因为他有一个虚拟机，这个虚拟机就导致了Python可以跨平台，无论是哪个操作系统，只要你在有虚拟机的操作系统就可以运行Python代码，所以Python跟适合做软件的开发神码ai火车头采集器伪原创。
二、数据类型的不同
We use a picture to summarize the data class type, construction type, pointer type, and empty type of C language. When defining variables in C language, you must first declare the type of the variable, tell the computer what type I am, and then the computer will The corresponding memory space will be opened up in the memory. Let’s take the integer as an example. The computer will open up 4 bytes of space in the memory. This space is mainly used for initialization. Since we have specified the length at the beginning, we are in When calculating, you need to be extra careful, and you need to consider overflow issues such as whether the memory is sufficient.
Let's take a look at the data types of Python again. We can find that there is not much difference in general. Python encapsulates some advanced data types, such as tuples, dictionaries, etc. The biggest advantage of Python over C language is that it does not need to define variables. Declare the type of the variable in advance. For example, if we define an integer variable age=18, first the computer will open up a piece of memory in the memory to store 18, and then point the age to 18. The variable age has no type. It's more friendly, we don't need to consider the type of the variable, and we don't need to consider whether it will overflow during the operation.
3. Differences in convenience
The biggest reason why the Python language can become popular is because it is simple. The simple syntax and rich class library of the Python language make many novices with zero foundation feel the magic of development. Python has many powerful built-in functions. We You only need to import them when you need to use them. These rich class libraries are called modules in Python, such as basic modules such as OS modules, time modules, and random modules. We can use one or even a few lines of code to implement hundreds of line effect. There are also disadvantages among so many modules in Python, that is, the reference problem between modules, and various errors will appear. Generally, we can use pip to manage the relationship between modules.
In contrast to the C language, it was born earlier and does not have a powerful class library, so we often need to write a lot of basic class libraries by ourselves. When we learn C language, we still remember that we need to quote a long list of header files. These The reasons are all the reasons that restrict the development of C language. However, this feature of the C language allows developers to develop some built-in functions that are more suitable for higher performance.
4. Different programming thinking
Another essential difference between the C language and Python is the different programming thinking. Simply put, the C language is a process-oriented language, while Python is an object-oriented language.
Process-oriented emphasizes how I should do it. That is, the execution process of the function, that is, what to do first, and what to do later. In process-oriented, we will write a lot of functions, and each function is responsible for completing a certain function. However, the process-oriented design idea has the following defects: poor adaptability of system software, poor scalability, and low maintainability.
An object-oriented way of thinking is an improvement to process-oriented. As a new programming idea, it is to think from the perspective of objects. We put multiple functions into different objects reasonably. What I emphasize is that I should let Who will do it. If you want to eat and let your aunt do it, if you want to write code and hire a programmer, you don't need to do it manually. The smallest object-oriented program unit is a class. There must be a definition of the class first, and then there must be an object, and an entity with certain functions is called an object.
Process-oriented and object-oriented have their own advantages and disadvantages. Object-oriented is more in line with our conventional way of thinking. It has good stability, strong reusability, easy to develop large-scale software products, and good maintainability. It has three major characteristics: inheritance, encapsulation, polymorphism .
5. Other differences
There are other differences between Python and C, which are mainly reflected in the comfort of development. When learning Python, we can use the graphical interface that comes with Python to program, which is somewhat similar to the Linux interface. This interface is interactive and easy to use. You can enter and exit with simple commands, further reducing the learning cost, and there are only a handful of C language compilers. At first, Dev-C++ was used, which is extremely poor in interactivity and has a very old-fashioned UI. Although Microsoft's Microsoft Visual studio has been upgraded in terms of functions and interactions, it still feels old-fashioned and not as smart as Python. When it comes to Python, we have to mention PyCharm. This kind of product with excellent interaction and beautiful UI really makes people fall in love with programming. Although it consumes a lot of memory, we can also use a lightweight product like VsCode.
In addition, Python expresses statements through indentation, which reduces unnecessary code, improves readability and comfort, and makes the code look more beautiful, while C language uses {}. These small grammatical differences all highlight Python Advanced features of the language.
Summarize
As mentioned above, there are so many differences between Python and C. In summary, C language is a very basic language, just like the addition, subtraction, multiplication and division we learned in elementary school. To prepare for the topic, the same is true for learning C language. It is the foundation and the first lesson for our introductory programming. It allows us to understand what variables, methods, and functions are. Therefore, I think C language is more suitable as an introductory language.
As a high-level language, Python has absorbed some good parts of C language, and at the same time improved the shortcomings of C language, taking its essence and discarding its dross, so that Python has become more intelligent. Programmers are not tool people, but magicians. We need to understand the bottom layer to make us go further and higher.
At present, the prospect of python is the best. Learning Python well is good whether it is employment or sideline business to make money, but you must have a learning plan to learn Python. Below is a full set of Python learning materials, to help those who want to learn Python!
1. Learning routes in all directions of Python
The route of all directions in Python is to organize the commonly used technical points of Python to form a summary of knowledge points in various fields. Its usefulness lies in that you can find corresponding learning resources according to the above knowledge points to ensure that you learn more comprehensively.
2. Learning software
If a worker wants to do a good job, he must first sharpen his tools. The commonly used development software for learning Python is here, which saves you a lot of time.
3. A full set of PDF e-books
The advantage of books lies in their authority and sound system. When you first start learning, you can just watch videos or listen to someone’s lectures, but after you finish learning, you think you have mastered it. At this time, it is recommended to read books and read Authoritative technical books are also the only way for every programmer.
4. Introductory learning video
When we watch videos and learn, we can’t just move our eyes and brain without using our hands. A more scientific learning method is to use them after understanding. At this time, the hands-on project is very suitable.
5. Practical cases
Optical theory is useless, you have to learn to follow along, and you have to do it yourself, so that you can apply what you have learned to practice. At this time, you can learn from some actual combat cases.
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