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软件工程
软件工程
软件工程
软件工程
软件工程
软件工程
软件工程
软件工程
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软件工程

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  • 1. 软件架构设计  前端  界面,实现Visitor接口,实现画图。  后端  分析,分析输入生成语法树 接口:Visitor 前端 后端
  • 2. 架构特点  使用访问者模式  模块独立性高,耦合度低 Execute Visitor Statement Drawing Board Tree Command Area Generate Token Command Tree Scan Queue String
  • 3. Analysis Data Methods (Resource & Product) (Machine) Command String Scan Token Queue Statement Tree Generate Tree
  • 4. Execute & Draw Command Execute(Command, Visitor) Analysis Command and get statement tree st. Drawing Board db For each element E in st: (Realization of Execute E.accept(db) Visitor)
  • 5. 访问者模式

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