说明：   文件系统实现 1． 数据结构设计 通过分析设计题目，具体设计出主要的三个数据结构。 2． 程序流程设计 根据课程设计的内容，给出具体实现的思路和程序框图，并给一定的解释，流程图要和自己的程序实现一致，不求多，要简练明确，可以参考实验指导书。 3． 主要算法设计 根据课程设计的内容和实现文件系统需要，给出查找，插入文件，用户等关键算法，可以参考演示程序。 4． 模拟实现文件系统 根据设计的数据结构，流程框图以及具体算法，用C/C++ 等高级程序设计语言模拟文件系统的实现。主要给出关键函数名称，调用关系，部分关键代码
(achieve a file system. Data structure design by analyzing a design, the specific design of the three main data structure. 2. Process design procedures based on the content of the curriculum design, gives concrete realization of the ideas and procedures diagram, and to a certain interpretation, flowchart to its own procedures and to achieve consensus, but not more, to be concise clear, we can make reference book to guide experiments. 3. The main algorithm design based on the content of the curriculum design and documentation system needs to achieve given search, insert, users key algorithm, can refer demonstration program. 4. Simulation file system based on the design of the data structure, process diagram and the specific algorithm, C/C senior programming language simulation file system )