2022年c++操作系统仿linux二级文件管理系统 .pdf

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1、实现了操作系统的管理员与用户登录权限的分离，还有文件夹的增删改查文件的增删改查 ，模拟 linux 。main.cpp #include #include #include BFSystem.h using namespace std; FBSystem *g_FBSystem = NULL; int main() int a; char g_UserName256; /用户名char g_PassWord256; /密码g_FBSystem = new FBSystem(); /用户验证coutg_UserName; cout密码 : ; char c,m = ?; int i; for(i

2、=0;i3;i+) do c = getch(); while(c9); mi = c; putchar(*); while(1) /回车继续 c = getch(); if(c=13) break; if(g_FBSystem-Login(g_UserName,m) coutendl; cout 登陆成功 !endl; cout 欢迎 :; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 1 页，共 20 页 - - - - - - - - - coutg_UserNameendl

3、; else coutendl; cout 无此用户 :g_UserName 输入任意键退出!exit; return 0; /系统初始化g_FBSystem-Initialize(); char time32; strcpy(time,g_FBSystem-GetTime(); /将后者复制给前者printf( 时间 :%sn,time); g_FBSystem-ShowMenu(); while (1) memset(g_FBSystem-m_CommandTemp,NULL,32); /将g_FBSystem-m_CommandTemp 全部变成null cin.sync(); /清除

4、cin 缓冲区for (int i=0; im_CurPathi0!=0) coutm_CurPathi; cing_FBSystem-m_CommandTemp; int commandID = g_FBSystem-SeekCommand(g_FBSystem-m_CommandTemp); char name256; char name1256; char text256; memset(text,0,256); switch(commandID) case 0: cinname; g_FBSystem-CreateDirectory(name); break; case 1: cinn

5、ame; g_FBSystem-DeleteDirectory(name); 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 2 页，共 20 页 - - - - - - - - - break; case 2: cinname; cinname1; g_FBSystem-RenameDirectory(name, name1); break; case 3: cinname; g_FBSystem-OpenDirectory(name); break; case 4: cinnam

6、e; g_FBSystem-CreateFile(name); break; case 5: cinname; g_FBSystem-DeleteFile(name); break; case 6: cinname; cinname1; g_FBSystem-RenameFile(name, name1); break; case 7: g_FBSystem-Format(); break; case 8: cinname; g_FBSystem-Read(name); break; case 9: cinname; g_FBSystem-Write(name); break; case 10

7、: g_FBSystem-ShowMenu(); break; case 11: g_FBSystem-ShowAllFiles(); break; case 12: g_FBSystem-ReturnPreDirectory(); break; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 3 页，共 20 页 - - - - - - - - - case 13: cinname; g_FBSystem-Inquiry(name); break; case 14: cinname

8、0; g_FBSystem-FuzzyInquiry(name0); break; case 15: g_FBSystem-Exit(); return 0; break; default: break; return 0; FBSystem.cpp #include BFSystem.h FBSystem:FBSystem() m_NumOfObject = 0; /初始化对象数目为0 strcpy(m_UserName1,yjz); strcpy(m_Password1,123); strcpy(m_UserName2,jj); strcpy(m_Password2,123); strcp

9、y(m_Command0,mkdir); /初始化命令行strcpy(m_Command1,mddir); strcpy(m_Command2,rndir); strcpy(m_Command3,cd); strcpy(m_Command4,mkfile); strcpy(m_Command5,mdfile); 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页，共 20 页 - - - - - - - - - strcpy(m_Command6,rnfile); strcpy(

10、m_Command7,format); strcpy(m_Command8,read); strcpy(m_Command9,write); strcpy(m_Command10,menu); strcpy(m_Command11,dir); strcpy(m_Command12,cd.); strcpy(m_Command13,query); strcpy(m_Command14,fquery); strcpy(m_Command15,exit); memset(m_CommandTemp, NULL, 32); memset(m_CurPath, NULL, 2560); strcpy(m

11、_CurPath0, root); this-m_CurPathFatherID = 0; this-m_CurPathID = 0; this-m_CurMaxID = 0; this-m_CurFaID = 0; this-m_pow=0; bool FBSystem:Login(char* _userName, char* _password) if (strcmp(_userName, m_UserName1)=0&strcmp(_password, m_Password1)=0) m_pow=1; return true; if (strcmp(_userName, m_UserNa

12、me2)=0&strcmp(_password, m_Password2)=0) m_pow=0; return true; return false; void FBSystem:Initialize() FILE *m_FilePoint=fopen(system,rb); /以只读方式打开系统文件名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 5 页，共 20 页 - - - - - - - - - if(m_FilePoint=NULL) printf( 无法打开:); pr

13、intf(system); fseek(m_FilePoint,0,0); /定 位文件 指针到文件起始位置int num; fread(&num,4,1,m_FilePoint); m_NumOfObject = num; if (num0) fseek(m_FilePoint, 4, SEEK_SET); /相对于文件起始点第5个字节的位置for (int i = 0; im_ObjectList.push_back(*temp); fclose(m_FilePoint); bool FBSystem:CreateDirectory(char* _dirName) for(this-m_O

14、bjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) if (!strcmp(m_ObjectIterator-name, _dirName) & m_ObjectIterator-type = 0) cout 目录名重复！fatherID = this-m_CurPathID; strcpy(temp-lastTime,time); strcpy(temp-name,_dirName); 名师资料总结 - - -精品资料欢迎下载 - - - - - - -

15、 - - - - - - - - - - - 名师精心整理 - - - - - - - 第 6 页，共 20 页 - - - - - - - - - temp-objectID = GetMaxID(); temp-size = 0; temp-type = 0; /0 为目录this-m_ObjectList.push_back(*temp); return true; bool FBSystem:DeleteDirectory(char* _dirName) for(this-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator

16、!= m_ObjectList.end(); +m_ObjectIterator) if (!strcmp(m_ObjectIterator-name, _dirName) & m_ObjectIterator-type =0) /检查该目录是否为非空list:iterator temp; for(temp = m_ObjectList.begin();temp!= m_ObjectList.end();+temp) if (temp-fatherID = m_ObjectIterator-objectID) cout不能删除非空的目录!m_ObjectIterator = m_ObjectL

17、ist.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) if (!strcmp(m_ObjectIterator-name, _srcName) & m_ObjectIterator-type = 0) strcpy(m_ObjectIterator-name, _descName); return true; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 7 页，共 20 页 - - - - -

18、 - - - - return true; bool FBSystem:OpenDirectory(char* _name) for(this-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) /存在该名称且类型为目录if (!strcmp(m_ObjectIterator-name, _name) & m_ObjectIterator-type=0) int temp =0; for (int i=0; iobjectID; return tru

19、e; if (!strcmp(root, _name) memset(m_CurPath, NULL, 2560); strcpy(m_CurPath0, root); m_CurPathFatherID = 0; m_CurPathID = 0; return true; cout错误操作 !m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) if (!strcmp(m_ObjectIterator-name, _fileName) & m_Obj

20、ectIterator-type =1) cout 文件名重复 !fatherID = this-m_CurPathID; strcpy(temp-lastTime,time); strcpy(temp-name,_fileName); temp-objectID = GetMaxID(); temp-size = 0; temp-type = 1; /0 为目录this-m_ObjectList.push_back(*temp); FILE *p = fopen(_fileName,w+); fclose(p); return true; bool FBSystem:DeleteFile(c

21、har* _fileName) for(this-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) if (!strcmp(m_ObjectIterator-name, _fileName) & m_ObjectIterator-type =1) remove(m_ObjectIterator-name); m_ObjectIterator = m_ObjectList.erase(m_ObjectIterator); return true; r

22、eturn true; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 9 页，共 20 页 - - - - - - - - - bool FBSystem:RenameFile(char* _srcName, char* _descName) for(this-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) if (!strcmp(m

23、_ObjectIterator-name, _srcName) & m_ObjectIterator-type = 1) strcpy(m_ObjectIterator-name, _descName); rename(_srcName,_descName); return true; return true; void FBSystem:Format() for(this-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) if(m_ObjectI

24、terator-type = 1) remove(m_ObjectIterator-name); m_ObjectList.clear(); m_NumOfObject = 0; /初始化对象数目为0 memset(m_CommandTemp, NULL, 32); memset(m_CurPath, NULL, 2560); strcpy(m_CurPath0, root); this-m_CurPathFatherID = 0; this-m_CurPathID = 0; this-m_CurMaxID = 0; bool FBSystem:Read(char* _name) for(th

25、is-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 10 页，共 20 页 - - - - - - - - - if(!strcmp(_name,m_ObjectIterator-name) & m_ObjectIterator-type = 1&m_ObjectIterator-fat

26、herID = m_CurPathID) FILE *p = fopen(_name, rb); if(p=NULL) return false; char *temp = new charm_ObjectIterator-size; fread(temp, m_ObjectIterator-size, 1, p); tempm_ObjectIterator-size = 0; couttempendl; fclose(p); return true; cout错误操作 !m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m

27、_ObjectList.end(); +m_ObjectIterator) if(!strcmp(_name,m_ObjectIterator-name) & m_ObjectIterator-type = 1 &m_ObjectIterator-fatherID = m_CurPathID) coutInput:endl; cin.sync(); char ch256; cin.get(ch,256); int size = 0; for (int i=0;isize = size; fclose(p); return true; cout错误操作 !m_ObjectIterator = m

28、_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) /如果上一层目录是根目录if (m_CurPathFatherID = 0) memset(m_CurPath, NULL, 2560); strcpy(m_CurPath0, root); m_CurPathID = 0; m_CurPathFatherID = 0; return true; if(m_ObjectIterator-objectID = m_CurPathFatherID & m_ObjectIterator-type

29、 = 0) for (int i=0; iname); strcat(m_CurPathi-2,); memset(m_CurPathi-1,NULL, 256); m_CurPathID = m_CurPathFatherID; m_CurPathFatherID = m_ObjectIterator-fatherID; return true; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 12 页，共 20 页 - - - - - - - - - return true; v

30、oid FBSystem:ShowAllFiles() printf(t 名称 t 大小 t 类型 t 时间 n); for(this-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator) /遍历列表属于该目录的对象便显示其信息if(m_ObjectIterator-fatherID = m_CurPathID) couttsetw(10)name; couttsetw(8)size; if(m_ObjectIterator-type) couttse

31、tw(8) 文件 ; else couttsetw(8)lastTime); coutttimeendl; coutendl; void FBSystem:ShowMenu() cout-菜单 -endl; if(m_pow=0) cout| 您的身份：游客|endl; if(m_pow=1) cout| 您的身份：管理员|endl; if(m_pow=1) cout| |endl; cout| 创建文件： mkfile name |endl; cout| 删除文件： mdfile name |endl; cout| 修改文件名字：rnfile srcname descname |endl;

32、名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 13 页，共 20 页 - - - - - - - - - cout| 读文件： read name |endl; if(m_pow=1) cout| 写文件： write name |endl; cout| 创建目录： mkdir name |endl; cout| 删除目录： mddir name |endl; cout| 修改目录名字：rndir srcname descname |endl; cout| 格式化： format

33、|endl; cout| 进入目录： cd name |endl; cout| 显示菜单： menu |endl; cout|显示所有文件信息：dir |endl; cout| 返回上一层目录：cd. |endl; cout| 查询文件： query name |endl; cout| 首字母查询： fquery header |endl; cout| 退出 (必做 )：exit |endl; cout| |endl; cout-m_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_

34、ObjectIterator) if (!strcmp(m_ObjectIterator-name, _name) &m_ObjectIterator-fatherID = m_CurPathID) couttsetw(10)name; couttsetw(8)size; if(m_ObjectIterator-type) couttsetw(8) 文件 ; else couttsetw(8)lastTime); coutttimem_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectList.end(); +m

35、_ObjectIterator) if (m_ObjectIterator-name0=_name&m_ObjectIterator-fatherID = m_CurPathID) couttsetw(10)name; couttsetw(8)size; if(m_ObjectIterator-type) couttsetw(8) 文件 ; else couttsetw(8)lastTime); coutttimeendl; return true; int FBSystem:SeekCommand(char* _command) if(m_pow=0) /游客 for (int i=0; i

36、16; i+) if (!(strcmp(m_Commandi, _command) switch(i) case 0: cout 对不起！您没有这个权限！endl; break; case 1: cout 对不起！您没有这个权限！endl; break; case 2: cout 对不起！您没有这个权限！endl; break; case 3: 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 15 页，共 20 页 - - - - - - - - - return i; break

37、; case 4: cout 对不起！您没有这个权限！endl; break; case 5: cout 对不起！您没有这个权限！endl; break; case 6: cout 对不起！您没有这个权限！endl; break; case 7: cout 对不起！您没有这个权限！endl; break; case 8: return i; break; case 9: cout 对不起！您没有这个权限！endl; break; case 10: return i; break; case 11: return i; break; case 12: return i; break; case

38、13: return i; break; case 14: return i; break; case 15: return i; break; default: break; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 16 页，共 20 页 - - - - - - - - - if(m_pow=1) /管理员 for (int i=0; im_ObjectIterator = m_ObjectList.begin(); m_ObjectIterator!= m_ObjectL

39、ist.end(); +m_ObjectIterator) if(m_ObjectIterator-objectIDm_CurMaxID) m_CurMaxID = m_ObjectIterator-objectID + 1; return m_CurMaxID; return m_CurMaxID+1; void FBSystem:Exit() m_NumOfObject = m_ObjectList.size(); FBObject *buf = new FBObjectm_NumOfObject; int i =0; for(m_ObjectIterator = m_ObjectList

40、.begin(); m_ObjectIterator!= m_ObjectList.end(); +m_ObjectIterator,i+) bufi = *m_ObjectIterator; FILE *p = fopen(system, w+); 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 17 页，共 20 页 - - - - - - - - - fwrite(&m_NumOfObject, 4,1, p); fseek(p, 4, SEEK_SET); fwrite(bu

41、f, sizeof(FBObject), m_NumOfObject, p); fclose(p); char* FBSystem:GetTime() /time_t now_time = time(NULL); /int year = now_time/ time_t t = time(0); char tmp64; strftime( tmp, sizeof(tmp), %Y/%m/%d %X,localtime(&t); /puts( tmp ); return tmp; FBSystem.h #include #include #include #include #include #i

42、nclude #include #include using namespace std; struct FBObject int fatherID; /父节点 ID int objectID; /该对象 ID char name1024; /对象名称int size; /对象尺寸int type; /对象类型0 为目录， 1 为文件char lastTime256; /对象最后修改时间; class FBSystem 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 18 页，共 2

43、0 页 - - - - - - - - - public: FBSystem(); FBSystem() bool Login(char* _userName, char* _password); /用户认证void Initialize(); /初始化bool CreateDirectory(char* _dirName); /创建目录bool DeleteDirectory(char* _dirName); /删除目录bool RenameDirectory(char* _srcName, char* _descName); /修改目录名称bool OpenDirectory(char*

44、_name); /进入目录bool CreateFile(char* _fileName); /创建文件bool DeleteFile(char* _fileName); /删除文件bool RenameFile(char* _srcName, char* _descName); /修改文件名称bool ReturnPreDirectory(); /返回上一层目录void Format(); /格式化bool Read(char* _name); /读文件bool Write(char* _name); /写文件bool Write2(char* _text); void ShowAllFil

45、es(); /显示当前目录所有文件信息void ShowMenu(); /显示菜单bool Inquiry(char* _name); /查询bool FuzzyInquiry(char _name); /模糊查询void Exit(); int SeekCommand(char* _command); /搜索是否存在刚刚输入的命令int GetMaxID(); /获 得当前 可用的最大 ID char* GetTime(); /获得时间public: char m_Command1632; /存储所有命令char m_CommandTemp32; /刚刚输入的命令char m_CurPath

46、10256; /记录当前路径int m_CurPathFatherID; /当前所在的目录的父节点 ID int m_CurPathID; /当 前所在 的目录自身 ID int m_pow; protected: list m_ObjectList; /对象列表list:iterator m_ObjectIterator; /迭代器int m_NumOfObject; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 19 页，共 20 页 - - - - - - - - - cha

47、r m_UserName256; char m_Password256; char m_UserName1256; char m_Password1256; char m_UserName2256; char m_Password2256; char m_UserName3256; char m_Password3256; int m_CurMaxID; /当前所有对象的ID最大值，用来创建对象ID int m_CurFaID; ; 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 20 页，共 20 页 - - - - - - - - -