4、1 将数据放入程序
学会ignore的用法
4、2 交互的输入和输出
4、3 非交互的输入和输出
4、4 文件输入和输出
istream, ostream, ifstream, ofstream
fileName.c_str() //转换c++类对象到CString对象
4、5 输入失败
* Invalid input data
* An attempt to read beyong the end of a file
* An attempt to open a nonexistent file for input
4、6 软件设计方法论
4、7 对象是什么？
4、8 以对象为导向的设计
4、9 功能分解
Concrete step : A step for which the implementation details are fully specified.
Abstract step : A step for which some implementation details remain unspecified.
Module : A self-contained collection of steps that solves a problem or subproblem; can contain both concrete and abstract steps.
如何去写模块：P135
