The KWIC问题,用管道风格、调用/返回风格和OOP风格分别实现-The KWIC problem, with pipe-style, call/return style and OOP-style, respectively, to achieve

KWIC软件架构作业三种实现，KWIC软件架构作业三种实现管道、OOP和调用返回。-KWIC software architecture, operating three kinds of achievement, KWIC software architecture to achieve operating three kinds of pipes, OOP and the call returns.