DB

代码说明：

说明：  What is data structure? A data structure is a way of organizing data that considers not only the items stored, but also their relationship to each other. Advance knowledge about the relationship between data items allows designing of efficient algorithms for the manipulation of datList out the areas in which data structures are applied extensively?  Compiler Design,  Operating System,  Database Management System,  Statistical analysis package,  Numerical Analysis,  Graphics,  Artificial Intelligence,  Simulation