本文以深入浅出的方式讲解了初学者如何理解编程，如何读懂程序的流程，编程中函数的应用，以及需求分析和程序设计对于编 程的重要作用。 -This paper simply and in ways to explain how to understand how programming, beginners read program flow, programming function, and application of needs analysis and design program