#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 name[8];
char pwd[10];
}users;
//文件结构
struct fnode
{
char filename[FILENAME_LENGTH];
int isdir;
int isopen;
char content[255]; //我是目录/我是文件fnode *parent;
fnode *child;
fnode *prev;
fnode *next;
};
//账号
users usrarray[8] =
{
"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
para[PARA_LENGTH],command[COMMAND_LENGTH],temppara[PARA_LENGTH],recentpa ra[PARA_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);
cin>>temp->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);
cin>>temp->filename;
cin>>temp->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!"<}
else
{
ttemp=recent->child;
