KWIC采用管道过滤器风格，采用Java实现-KWIC pipe filter style by using the Java implementation

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

KWI：Ckeyword in context是软件体系结构教学最常用的例子，主要功能是过滤非关键字字符，过滤非法关键字等，本程序采用主程序子程序风格、管道过滤器、BlackBoard风格来实现，采用txt输入输出-KWI: Ckeyword in context is the most common example of software architecture teaching, the main function is to filter non-keyword character fi

KWIC采用管道过滤器风格，采用Java实现-KWIC pipe filter style by using the Java implementation