本設計的目的是通過設計和調試一個簡單的文件系統,主要是模擬文件操作命令的執行,來模擬文件管理,使學生對主要文件操作命令的實質和執行過程有比較深入的了解,掌握它們的基本實施方法。具體要求如下: (1) 設計一個支持n個用戶的文件系統,每個用戶可擁有多個文件: (2) 采用二級或二級以上的多級文件目錄管理; (3) 對文件應設置存去控制保護方式,如“只能執行”、“允許讀”、“允許寫等”; (4) 系統的外部特征應接近于真實系統,可設置下述文件操作命令: 命 令 功 能 命 令 功 能 Create 建立文件 Read 讀文件 Open 打開文件 Write 寫文件 Close 關閉文件 Copy 復制文件 Delete 撤消文件 Directory 查詢目錄 (5) 通過鍵盤使用該文件系統,系統應顯示操作命令的執行結果。
上傳時間: 2014-01-11
上傳用戶:zhanditian
(1) 給定一段符合Pascal子集語法的語言,能成功轉換成C語言; (2) 一個簡單的說明文檔; (3) 2007.7.14之前上傳到ftp:// C07:C07@10.11.3.71/upload,用學號建立自己的目錄; (4) (可額外加分5分)若有出錯處理功能,請在說明文檔中寫明可以處理哪幾項錯誤。 注意事項: (1) 兩人一組 (2) 可以使用詞法、語法自動生成工具,windows下有Flex,Bison,Linux下有Lex,Yacc,Java的有Jlex,JavaCC,ANTLR等 (3) 不用考慮Pascal和C的關鍵詞不同問題,即Pascal子集語言中假設不出現int,for等作為變量標志符 (4) read()和write()可用由scanf(),printf()等組成的語句轉換。 (5) 如果有疑問可以發信給我 xpqiu@fudan.edu.cn.
上傳時間: 2015-11-20
上傳用戶:talenthn
Software Testing, Second Edition provides practical insight into the world of software testing and quality assurance. Learn how to find problems in any computer program, how to plan an effective test approach and how to tell when software is ready for release. Updated from the previous edition in 2000 to include a chapter that specifically deals with testing software for security bugs, the processes and techniques used throughout the book are timeless. This book is an excellent investment if you want to better understand what your Software Test team does or you want to write better software.
標簽: practical Software provides software
上傳時間: 2014-08-01
上傳用戶:zhaiyanzhong
STK500_2下載器 M8 支持bootloader(帶bootloader源碼) 使用STK500_2 協議的ISP下載器,監控芯片 M8,數據通訊RS232.使用 ATMEL AVRStudio 4.xx STK500工具的進行軟件升級。可通過ATMEL AVRStudio 4.xx STK500工具升級固件程序。升級方法:通過設定電壓 即按“write voltage”按鈕進入bootloader程序。
標簽: bootloader STK 500 ISP
上傳時間: 2014-08-27
上傳用戶:haoxiyizhong
FLASH文件系統的源碼,Flash memory is a nonvolatile memory, which allows the user to electrically program (write) and erase information. The exponential growth of flash memory has made this technology an indispensable part of hundreds of millions of electronic devices. Flash memory has several significant differences with volatile (RAM) memory and hard drive technologies which requires unique software drivers and file systems. This paper provides an overview of file systems for flash memory and focuses on the unique software requirements of flash memory devices.
上傳時間: 2015-11-29
上傳用戶:問題問題
Avalon Interface Specification,The Avalon interface specification is designed to accommodate peripheral development for the system-on-a-programmable-chip (SOPC) environment. The specification provides peripheral designers with a basis for describing the address-based read/write interface found on master and slave peripherals, such as microprocessors, memory, UART, timer, etc.
標簽: Avalon Specification specification accommodate
上傳時間: 2014-03-06
上傳用戶:pompey
圖像處理的關于Snakes : Active Contour Models算法和水平集以及GVF的幾篇文章,文章列表為: [1]Snakes Active Contour Models.pdf [2]Multiscale Active Contours.pdf [3]Snakes, shapes, and gradient vector flow.pdf [4]Motion of level sets by mean curvature I.pdf [5]Spectral Stability of Local Deformations Spectral Stability of Local Deformations.pdf [6]An active contour model for object tracking using the previous contour.pdf [7]Volumetric Segmentation of Brain Images Using Parallel Genetic AlgorithmsI.pdf [8]Segmentation in echocardiographic sequences using shape-based snake model.pdf [9]Active Contours Without Edges.pdf 學習圖像處理的人必看的幾篇文章
標簽: Contour Snakes Active Models
上傳時間: 2014-01-15
上傳用戶:wqxstar
ADV7181B視頻解碼設置和控制實驗 FreeDev Digital Application Board采用了ADI公司的 ADV7181B視頻解碼芯片。控制接口使用I2C,40H--write,41H---read。
標簽: 7181B 7181 Application ADV
上傳時間: 2015-12-14
上傳用戶:風之驕子
最大流,The programs are designed to run under BSD UNIX. All programs read from the standard input and write to the standard output. Run "make" to compile the programs and generators. File "list" lists the programs produced my "make". Input files are in DIMACS format. See sample.input.
標簽:
上傳時間: 2015-12-30
上傳用戶:zhenyushaw
detailed description of network driver design for uclinux. It s quite good for the understanding the work flow of ethernet driver in uclinux
標簽: understanding description for the
上傳時間: 2014-06-17
上傳用戶:rocketrevenge