图示法分析程序

Analyze program with Schemas

对于学习程序设计的人来说,程序分析是入门的关键,但这也恰恰是一个难点。尤其是遇到变量作用域不同、函数调用、指针等稍微复杂的程序时更是容易出错。用图示法分析程序是一种行之有效而且容易掌握的方法。

To the people who are learning program designing, the key point is to understand program analysis-the most difficult part. Especially, when we meet the problems such as variable scope difference,transfer function, use pointer and so on, it is much easier to make mistakes. Therefore, schemas are very effective and easy to master.