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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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Forex Rob v1.3
推荐Forex Rob v1.3 稳定外汇EA剥头皮EA 凌晨刷单EA,市场上多数头皮是大止损小盈利,由其是止损设的很大,要杠单,这EA小止损默认是20 大盈利100 ,1:4关系 止损是很灵活的机器人,内置波动率动力等计算参数,行情不对会提前平仓,基本上很少碰到硬止损 不用担心大止损的情况了,有朋友500美元敢下0.2手挂5个货币一天盈利100来美元的情况都很多 安全低风险不会损失很多 亏损也就是十几点而已 盈利很稳健 适合小资金短期快速翻仓(Recommended Forex Rob v1.3 stable foreign exchange EA scalp EA early morning brush single EA, the market most scalp is a big stop loss, it is a big stop loss, it is a big stop loss, to the bar, this EA small stop by default is 20 big profit 100, 1:4 relationship is a very flexible robot, built-in volatility power and other calculation parameters, the market will not be flat ahead of time Storehouse, basically rarely encountered hard stop loss, no fear of big stop loss, 500 dollars of friends dare to hang 0.2 hands to hang 5 currencies a day to profit 100 dollars in the case of a lot of security low risk will not lose a lot of loss is also more than a dozen points of profit is very robust suitable for short period of short period of quick turnover of small funds)
- 2018-04-10 00:14:38下载
- 积分:1
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tanchishe
一个简单的贪吃蛇,希望多初学者有点帮助,就用了for循环写的(A simple snake, hope to beginners a little help, the program only used for the cycle to write)
- 2017-04-19 18:58:22下载
- 积分:1
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supermario
这是一个模仿任天堂经典游戏《超级玛丽》的克隆游戏。目前支持windows
和linux两种操作系统。你应该已经得到了这个游戏的全部源代码和地图编辑器
的源代码。地图编辑器( MapEdit目录下 )使你可以充分发挥想象力,轻而易举
地创造出游戏中的关卡
(This is a mimic classic Nintendo game " Super Mario" games Cloning. Currently supports two types of windows and linux operating system. You should have been the game all the source code and map the source code editor. Map Editor (MapEdit directory) allows you to give full play to the imagination, easy to create in-game points)
- 2009-02-02 12:30:56下载
- 积分:1
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SetupVSPE
这是一个非常好用的串口虚拟文件源代码,我使用过非常多次了,非常的好用。(Application of serial port communication in the virtual reality system based on VB)
- 2020-06-23 15:40:02下载
- 积分:1
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Beijing Mandarin Oriental Network Office System
北京华信东方网络办公系统-Beijing Mandarin Oriental Network Office System
- 2022-03-10 12:05:21下载
- 积分:1
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网页常用的Flash焦点图代码
一个较常见的Flash焦点图代码,网页有很多类似的图片轮显效果,本款效果内核是基于SWF文件,配合JS共同实现,示例文件也是效果演示文件,下载后请参见index.html中的方法进行调用。横长型的Flash焦点图特效,鼠标放在图片上时,会显示左右控制切换的按钮。
- 2022-07-10 01:14:24下载
- 积分:1
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LabVIEW编写的多通道数据采集程序
说明: 采用DAQ设计的多通道数据采集系统。该系统具有通道选择和显示的功能(A multi - channel data acquisition system designed by DAQ. The system has the function of channel selection and display)
- 2020-06-10 09:59:08下载
- 积分:1
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给出小波去噪的理论,在MATLAB中实现阈值估算和消噪的函数,并给出例子说明。...
给出小波去噪的理论,在MATLAB中实现阈值估算和消噪的函数,并给出例子说明。-Given the theory of wavelet denoising in MATLAB to achieve the threshold estimation and de-noising function, and gives examples to illustrate.
- 2023-06-20 22:00:03下载
- 积分:1
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PhysRevLett.74.2981
Regular Patterns of Cracks Formed by Directional Drying of a Collodial Suspension
- 2019-01-19 14:22:05下载
- 积分:1