四）练习该实验的目的和思路：

程序开始变得复杂起来，可能是大家以前编过的程序中最复杂的，但相对于以后的程序来说还是简单的。因此要认真把握这个过渡期的练习。程序规模大概为200行。本实验和以后的实验相关。通过练习，掌握对字符进行灵活处理的方法。

（五）为了能设计好程序，主意以下事情：

1.模块设计：将程序分成合理的多个模块（函数），每个模块做具体的同一事情。

2.写出（画出）设计方案：模块关系简图、流程图、全局变量、函数接口等。

-4) to practice the purpose of the experiment and thinking : beginning of the process to be more complicated, We may be numbered before the most complex procedures, but in relation to the procedures after or simple. Therefore, in order to seriously grasp this period of transition exercises. Procedures size of around 200 firms. After the experiment and the experimental correlation. Through practice, master of characters flexible approach. (5) In order to be able to design the program idea to the following matters : 1. Module Design : procedures will be divided into a number of reasonable modules (functions), each module of the same specific things. 2. Write (paint) Design Program : Module relationship diagrams, flow charts, global variables, function interface.