Shulou(Shulou.com)06/02 Report--

This article mainly introduces the relevant knowledge of "what is the difference between C language and C #". The editor shows you the operation process through an actual case, and the operation method is simple, fast and practical. I hope this article "what is the difference between C language and C #" can help you solve the problem.

C # is one of the three mainstream OOP (object oriented programming) languages. There are some differences between C # and C.

C language was born very early. The goal of C language is to be easier to use than assembly without losing the expression ability of assembly. So C language can be regarded as a "high-level assembly" language. The source code of the C language can basically correspond very easily to the assembly code and does not require the support of any runtime environment. The characteristics of C, simple and easy to compile, flexible close to the bottom. So up to now, some software that needs to deal directly with hardware is still written in C language. In short, C language is easy to write, closer to the bottom, and intuitively manage data storage.

C # language has a high level of abstraction and basically only one (object-oriented), rich runtime support (garbage collection, etc.), rich class libraries. So it is easy to learn, easy to use, while taking into account the operating efficiency, as far as possible optimization. C # is similar to Java in that the compiled code is not the machine code, but the meta-instruction running in the virtual machine. It gives more consideration to security, without pointers, can not directly operate memory, and automatically realizes memory management.

The most intuitive difference is: C # has no pointer type, and memory is managed automatically; C # has string type, but C language does not, and string is saved by character array or pointer; switch in C # can be followed by string type, and all failures of switch..case statements are prohibited. Unless there is a space after the case statement, the execution of the previous case statement will stop executing the following case statement even if there is no break. When an array is defined in C #, the array length can be a variable, but when it is defined in C language, the array length can only be a constant expression, and the molla function is needed for dynamically allocating memory; there is no set type in C language; C # has foreach for traversing arrays and collections.

Generally speaking, C language is lower-level, and many things need their own DIY, but it is extremely flexible and powerful, and its essence lies in pointers, direct management of data storage, procedure-oriented programming, and many operating systems and system software are written in C; C # is easier to use, and many things have been written and can be used directly, avoiding direct memory management and object-oriented programming. As a cold joke said, "C language: pointers are best used." Caterpillar: it's better not to use a pointer. What is the pointer? "

=

First, the difference in the degree of difficulty.

C # belongs to a product in. Net framework that is easy to use, but the developed things currently need to install the runtime before they can be used by others. C language is an ancient and difficult language, which may be widely used in embedded systems at present. In addition, universities will have this course. There are also related cymbals, which can be used as the underlying development of the system and are not easy to master.

Second, the difference in content.

C language is process-oriented, develops unmanaged programs, and compiles into exe is a binary executable file that cannot cross platforms. C # object-oriented, develop managed programs, compiled into exe is an intermediate language, need to be dynamically compiled on the .NET platform, and then can be executed, cross-platform.

Third, the difference in characteristics.

C language was born very early, at that time, people are generally used to writing software in assembly language, and there is no unified, general operating system, basically software is written from 0. C # is a secure, stable, simple and elegant object-oriented programming language derived from C and C++. It inherits the powerful functions of C and C++ while removing some of their complex features.

=

C: process-oriented, syntax is too troublesome, but the underlying programming of the hardware and the flexibility of memory management c is beyond the reach of other high-level languages.

Caching: pure object-oriented (much like java), is one of the main forces of ms. Net framework, its code runs safely, there are no pointers and references, and there is a garbage collection mechanism like java.

Syntax is basically the same, first of all, C # does not have to do too much research on pointers, and then addressability, etc., other differences are quite large. It can be said that it is not in the same direction.

Development environment and development language are also two different concepts.

Learning C # does not have to be based on C language, but if you have learned C language, you will get twice the result with half the effort, because there are many grammars that are the same between them. As a beginner, it is not necessary to learn C language first, you just need to have a complete tutorial on C #.

This is the end of the content about "what is the difference between C language and C #". Thank you for your reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.