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本设计的目的是通过设计和调试一个简单的文件系统，主要是模拟文件操作命令的执行，来模拟文件管理，使学生对主要文件操作命令的实质和执行过程有比较深入的了解，掌握它们...
本设计的目的是通过设计和调试一个简单的文件系统，主要是模拟文件操作命令的执行，来模拟文件管理，使学生对主要文件操作命令的实质和执行过程有比较深入的了解，掌握它们的基本实施方法。具体要求如下：
（1） 设计一个支持n个用户的文件系统，每个用户可拥有多个文件：
（2） 采用二级或二级以上的多级文件目录管理；
（3） 对文件应设置存去控制保护方式，如“只能执行”、“允许读”、“允许写等”；
（4） 系统的外部特征应接近于真实系统，可设置下述文件操作命令：
命 令 功 能 命 令 功 能
Create 建立文件 Read 读文件
Open 打开文件 Write 写文件
Close 关闭文件 Copy 复制文件
Delete 撤消文件 Directory 查询目录
（5） 通过键盘使用该文件系统，系统应显示操作命令的执行结果。-the purpose of this design is by designing and debugging a simple file system, main operation is simulated documents the execution of the order to simulate document management, enable students to the main document commands the substance and the implementation process of a more in-depth understanding, They grasp of the basic method. Specific requirements are as follows : (1) design a support n user file system, each user can have multiple files : (2) use of two or more than two multi-level directory management; (3) the document should be set up to deposit control and protection methods, such as "the only
- 2023-04-23 12:45:04下载
- 积分：1
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the win
win-tc环境下编译生命繁殖模拟小游戏
- 2023-06-20 00:55:04下载
- 积分：1
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对grwave PC版需要一台IBM PC / AT或等效
地波场强计算,高频地波场强衰减计算，高频电磁波地波传播计算仿真，Fortran源程序，可以在cirr公开网址上获得。- The PC version of GRWAVE requires an IBM PC/AT or equivalent
(80286 microprocessor) with a math co-processor and a minimum of
256 kilobytes of memory.
Disk Contents:
GRWAVE is supplied on a 3.5" or 5.25" disk which
contains three main files. These are GRWAVE.EXE, GRWAVE.FOR
and GRWUSR.MAN. GRWAVE.EXE is executable machine language code.
GRWAVE.FOR is the FORTRAN source code. Compilation of this
source code to produce an executable code requires a FORTRAN
compiler which supports double precision complex arithmetic.
Microsoft FORTRAN Version 4.01 was used to compile and link
GRWAVE.FOR to produce GRWAVE.EXE. Compilation has also been
tested with Lahey FORTRAN F77L [*]. It is known the IBM
Professional FORTRAN will not work because of a lack of support
for double precision complex arithmetic.
[*] Note: GRWAVE uses a function, DREAL, which is not an
in
- 2022-04-14 19:32:30下载
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PROTEUS UART APPLICATION
PROTEUS UART APPLICATION
- 2022-06-30 05:08:50下载
- 积分：1
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This is a C Programming Document
这是一个C++编程文档-This is a C Programming Document
- 2022-10-03 20:00:03下载
- 积分：1
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卡西欧DT
casio DT-930范例
MOT
.RAR-casio DT-930 sample MOT.RAR
- 2022-03-24 20:35:47下载
- 积分：1
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Makes itself a small Chinese character font program itself becomes smaller font...
使自己成为一个小汉字字体程序自己变成小字体小字体程序自己变成中文程序
- 2023-04-18 05:25:04下载
- 积分：1
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一
一维小波算法的VC＋＋实现
详细算法流程请参考程序中的注释部分
程序通过测试-One-dimensional wavelet algorithm for VC to achieve a detailed algorithm flow process please refer to the Notes section of the program to pass the test
- 2022-01-25 20:54:15下载
- 积分：1
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扫雷游戏在vc++下的源代码，对C++初学者会有很大帮助
扫雷游戏在vc++下的源代码，对C++初学者会有很大帮助-Mine game under vc++ source code, for C++ will be of great help for beginners
- 2022-02-24 12:13:45下载
- 积分：1
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vb编写的引入系统监视器，一个非常小但实用。
vb编写的引入系统监视器，一个非常小但实用。-vb prepared by the introduction of system monitors, a small but very practical.
- 2023-07-02 23:40:03下载
- 积分：1
