系统模拟设计 c++.doc

#include stdio.h#include iostream.h#include string.h#include iomanip.h#define FILENAME_LENGTH 10 /文件名称长度#define COMMAND_LENGTH 10 /命令行长度#define PARA_LENGTH 30 /参数长度 /账号结构 typedef struct users char name8; char pwd10;users; /文件结构struct fnode char filenameFILENAME_LENGTH; int isdir; int isopen; char content255; /我是目录/我是文件 fnode *parent; fnode *child; fnode *prev; fnode *next;/账号users usrarray8 = usr1,usr1, usr2,usr2, usr3,usr3, usr4,usr4, usr5,usr5, usr6,usr6, usr7,usr7, usr8,usr8,; fnode *initfile(char filename,int isdir); void createroot(); int run(); int findpara(char *topara); bool chklogin(char *users, char *pwd); void help(); int mkdir(); int create(); int read(); int write(); int del(); int cd(); int dir();fnode *root,*recent,*temp,*ttemp;char paraPARA_LENGTH,commandCOMMAND_LENGTH,tempparaPARA_LENGTH,recentparaPARA_LENGTH;/创建文件与目录结点 fnode* initfile(char filename,int isdir) fnode *node=new fnode; strcpy(node-filename,filename); node-isdir=isdir; node-isopen=0; node-parent=NULL; node-child=NULL; node-prev=NULL; node-next=NULL; return node;/创建文件存储结点void createroot () recent=root=initfile(/,1); root-parent=NULL; root-child=NULL; root-prev=root-next=NULL; strcpy(para,/); int mkdir() temp=initfile( ,1); cintemp-filename; if(recent-child=NULL) temp-parent=recent; temp-child=NULL; recent-child=temp; temp-prev=temp-next=NULL; else ttemp=recent-child; while(ttemp-next) ttemp=ttemp-next; if(strcmp(ttemp-filename,temp-filename)=0&ttemp-isdir=1) printf(对不起,目录已存在!); return 1; ttemp-next=temp; temp-parent=NULL; temp-child=NULL; temp-prev=ttemp; temp-next=NULL; return 1;int create() temp=initfile( ,0); cintemp-filename; cintemp-content; if(recent-child=NULL) temp-parent=recent; temp-child=NULL; recent-child=temp; temp-prev=temp-next=NULL; cout文件建立成功!child; while(ttemp-next) ttemp=ttemp-next; if(strcmp(ttemp-filename,temp-filename)=0&ttemp-isdir=0) printf(对不起,文件已存在!); return 1; ttemp-next=temp; temp-parent=NULL; temp-child=NULL; temp-prev=ttemp; temp-next=NULL; cout文件建立成功!endl; return 1;int dir()int i=0,j=0;temp=new fnode;temp=recent;if(temp!=root)cout .child=NULL) coutTotal: directors i files j child;while(temp) if(temp-isdir) cout filenameendl;i+; else cout filenamenext; coutTotal: directors i files j filename; if(recent-child=NULL) cout文件不存在!child-filename,filename)=0) coutchild-contentchild; while(temp-next) if(strcmp(temp-next-filename,filename)=0) coutnext-contentendl; return 1; cout文件不存在!filename; if(recent-child=NULL) cout文件不存在!child-filename,filename)=0) recent-child-isopen=1;/设置文件标记为打开 cinrecent-child-content; recent-child-isopen=0;/设置文件标记为关闭 cout文件写入成功!child; while(temp-next) if(strcmp(temp-next-filename,filename)=0) recent-child-isopen=1;/设置文件标记为打开 cintemp-next-content; recent-child-isopen=0;/设置文件标记为关闭 cout文件写入成功!endl; return 1; cout文件不存在!topara; if(strcmp(topara,.)=0) int i; while(recent-prev) recent=recent-prev; if(recent-parent) recent=recent-parent; i=strlen(para); while(parai!=/ & i0) i-; if(i!=0) parai=0; else parai+1=0;else findpara(topara); return 1;int findpara(char *topara) int i=0; int sign=1; if(strcmp(topara,/)=0) recent=root; strcpy(para,/); return 1; temp=recent; strcpy(temppara,para); if(topara0=/) recent=root-child; i+; strcpy(para,/); else if(recent!=NULL & recent!=root) strcat(para,/); if(recent & recent-child) if(recent-isdir) recent=recent-child; else printf(路径错误！n); return 1; while(ichild) i+; if(recent-isdir) recent=recent-child; else printf(路径错误n); return 0; strcat(para,/); while(toparai!=/ & ifilename,recentpara)!=0 | (recent-isdir!=1) & recent-next!=NULL) recent=recent-next; if(strcmp(recent-filename,recentpara)=0) if(recent-isdir=0) strcpy(para,temppara); recent=temp; printf(是文件不是目录。n); return 0; strcat(para,recent-filename); if(strcmp(recent-filename,recentpara)!=0 | recent=NULL) strcpy(para,temppara); recent=temp; printf(输入路径错误n); return 0; return 1;int del() char filenameFILENAME_LENGTH; cinfilename; temp=new fnode; if(recent-child) temp=recent-child; while(temp-next & (strcmp(temp-filename,filename)!=0 | temp-isdir!=0) temp=temp-next; if(strcmp(temp-filename,filename)!=0) cout不存在该文件！endl; return 0; else cout不存在该文件！parent=NULL) temp-prev-next=temp-next; if(temp-next) temp-next-prev=temp-prev; temp-prev=temp-next=NULL; else if(temp-next) temp-next-parent=temp-parent; temp-parent-child=temp-next; delete temp; cout文件已删除!endl; bool chklogin(char *users, char *pwd) int i; for(i=0; i8; i+) if( (strcmp(users,)=0) & (strcmp(pwd,usrarrayi.pwd)=0) return true; return false;void help(void) cout 命 令 一 览 endl; coutendl; coutcreate: 建立文件。 endl; coutread: 读取文件。 endl; coutwrite: 写入文件,支持多线程 endl; coutdel : 删除文件。 endl; coutmkdir: 建立目录。 endl; coutcd: 切换目录。 endl; coutlogout: 退出登录。 endl;int run() coutlinux:para; cincommand; if(strcmp(command,mkdir)=0) mkdir(); else if(strcmp(command,dir)=0) dir(); else if(strcmp(command,cd)=0) cd(); else if(strcmp(command,create)=0) create(); else if(strcmp(command,read)=0) read(); else if(strcmp(command,write)=0) write();else if(strcmp(command,del)=0) del();else if(strcmp(command,help)=0) help(); else if(strcmp(command,logout)=0) return 0; else cout请参考help提供的命令列表!endl; int main()int i=0;bool in=false;char users8,pwd12; cout|-|endl;