"C程序设计教学：第4章函数，介绍内联函数、默认参数、函数重载"

Chapter 4 of the C Programming course focuses on functions, which are essential building blocks in programming. Functions allow for code reusability and modular design, making programs easier to understand and maintain. In this chapter, students are introduced to the syntax of functions in C programming, which includes the type of return value, the function name, and the argument list. The argument list serves as a way for functions to communicate with each other by passing information. Functions can have 0, 1, or more arguments, separated by commas, depending on the function's needs. One important concept covered in this chapter is inline functions, which are a type of function that is expanded by the compiler at each point of call, rather than being executed as a separate function. This can improve performance by reducing the overhead of function calls. Another important topic covered is default arguments, which allow for a function to have default values for its arguments in case they are not provided by the caller. This can make the function more flexible and user-friendly. Lastly, the chapter covers function overloading, which allows for multiple functions with the same name but different argument lists. This can make the code more concise and elegant by reusing function names for different purposes. Overall, functions are a crucial aspect of C programming, and mastering them is essential for writing clear and efficient code. As students progress through this chapter, they will gain a deeper understanding of how functions work and how to leverage them to write better programs.