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Usage of #include in C language
The usage of #include in C language is: 1. Used to include header files of the standard library. The header files in the standard library are usually placed in the standard path of the system, and the compiler can directly find and include them; 2. Used to include user-defined header files. User-defined header files are usually placed in the current project directory or a specified path. For more related content, you can visit the articles under this topic.
What is the usage of include in C language?In the C language, the #include command is used to insert the contents of the specified header file into the corresponding location of the preprocessor command; there are two ways to specify the insertion of the header file, and the syntax is: "#include" and "#include "filename"". in c language mean?"" class="lazyload ztliImg" src="https://img.php.cn/upload/article/000/000/053/5f0ebdd866c61220.jpg" onerror="this.src='/static/mobimages/moren/moren.png'"/>
What does includein c language mean? The meaning of "include" in C language is: the header file is the "standard library" standard library header file. This file contains the definition of the C language standard library function "stdlib"; it contains the most commonly used system functions in C and C++ languages. 
Are #include and #define C statements?#include and #define are not C statements. In C language, only those ending with a semicolon (;) are regarded as C statements; "#" represents a preprocessing macro. #include and #define do not participate in compilation, but the source code is processed before the compiler compiles the source code. Processing adjustments.
What are the command keywords contained in files in C language?The keyword for the file include command is "include". The file inclusion command "#include" is a commonly used preprocessing command in C language programs. It is used to introduce the corresponding header file (".h" file), and its format is "#include "Header.h"".
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