C语言程序设计循环结构之“四要素学习法”

The"Four Elements Learning Method"of C Language Programming Loop Structure

C语言程序设计中循环结构是顺序、选择、循环三大基本结构之一,功能强大,使用灵活方便,但是学生学习难度比较大。该文以累加和为切入点深入分析循环结构特点,总结出循环结构“四要素学习法”,用for、while、do-while等循环语句分别实现其循环算法,并举例加以深入解读,使循环结构学习思路清晰,重点突出,对于学生掌握并灵活使用循环结构非常有帮助。

Loop structure in C language programming is one of the three basic structures:sequence,selection and loop.It is powerful and can be used flexibly and conveniently.But students are more difficult to learn.This paper takes cumulative sum as the starting point to analyze the characteristics of loop structure,summarize the loop structure"Four Elements Learning Method".The loop al⁃gorithm is implemented with loop statements such as for,while and do-while respectively,and give examples for further interpreta⁃tion.It makes the loop structure study clear and the key point is outstanding.It is very helpful for students to master and use the loop structure flexibly.