文件名称:060103
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1、采用二级文件目录（即主目录MFD和用户文件目录UED）。另外，为打开文件设置运行文件目录AFD。
2、文件保护可采用三位保护码：当R＝1，W＝1，E＝1时，表示可以进行读，写，执行操作；当R＝0，W＝0，E＝0时，表示不可以进行读，写，执行操作。
3、对文件的读写操作可简化成只改变读写指针；对文件目录的搜索可采用先行搜索。
-one using two documents directory (MFD that is the main directory and user directory UED). Furthermore, in order to open the file directory set up operations AFD. 2, documents can be protected three-protection codes : When R = 1, W = 1, E = 1:00, can read, write, execution; When R = 0, W = 0, E = 0, can not be said for reading, writing and execution. Three of the paper and write simplified into only change the literacy targets; Contents of the document search available first search.
2、文件保护可采用三位保护码：当R＝1，W＝1，E＝1时，表示可以进行读，写，执行操作；当R＝0，W＝0，E＝0时，表示不可以进行读，写，执行操作。
3、对文件的读写操作可简化成只改变读写指针；对文件目录的搜索可采用先行搜索。
-one using two documents directory (MFD that is the main directory and user directory UED). Furthermore, in order to open the file directory set up operations AFD. 2, documents can be protected three-protection codes : When R = 1, W = 1, E = 1:00, can read, write, execution; When R = 0, W = 0, E = 0, can not be said for reading, writing and execution. Three of the paper and write simplified into only change the literacy targets; Contents of the document search available first search.
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4.cpp