文件管理系统
/***********文 件 管 理 系 统***********/
#include <stdio.h>
#include <stdlib.h> /*不容易归类的标准函数库*/
#include <conio.h>
#include <string.h>
#include <sys\stat.h>
#include <fcntl.h> /*非标准文件输入输出操作的代码符号属性*/
#include <dos.h>
#include <io.h>
int init() /*初始化操作界面函数*/
{int i;
clrscr();
gotoxy(23,4);printf("* * * * * * * * * * * * * *");
gotoxy(27,5);printf("FILE MANAGE SYSTEM");
gotoxy(23,6);printf("* * * * * * * * * * * * * *");
gotoxy(28,9);printf("1--Creat File");
gotoxy(28,10);printf("2--Delete File");
gotoxy(28,11);printf("3--OPen File");
gotoxy(28,12);printf("4--Write File");
gotoxy(28,13);printf("5--Locate File");
gotoxy(28,14);printf("6--Modify File");
gotoxy(28,15);printf("7--Copy File");
gotoxy(28,16);printf("8--Move File");
gotoxy(28,17);printf("9--Cataloge Manage");
gotoxy(28,18);printf("10--Exit File");
gotoxy(25,21);
printf("Please Choice:");
scanf("%d",&i);
return(i); /*选择相应的序号，执行相应的操作*/
}
main()
{int x,i,j,flag=1;
char name[15],name1[15],name2[40];
char choice,ch;
int handle,status; /*定义文件的指针和状态*/
FILE *fp;
while(flag) /*初始化系统界面*/
{i=init();
getchar();
switch(i)
{ case 1:label1: /*创建文件操作*/
clrscr();
gotoxy(27,5);printf("CREAT FILE\n");
for(j=0;j<40;j++)
printf("= ");
printf("\n\nPlease input the creating file name and routine:\n");
scanf("%s",name);
getchar();
handle=creatnew(name,0)；/*按指定的文件方式创建文件，若有同名文件返回错误代码*/
if(handle==-1)
{ printf("\nSorry,the file already exists.");
getchar();
printf("\nInput again?(Y or N)");
scanf("%c",&choice);getchar();
if(choice=='Y'||choice=='y')
goto label1;
}
else { printf("\nThe file is created.");
printf("Do you now input contentof the file?(Y or N):");
while(1) /*输入创建文件的内容*/
{ scanf("%c",&choice);
if(choice=='y'||choice=='n'||choice=='Y'||choice=='N')
break;
else
printf("\nError!Please input again!");
}
if(choice=='y'||choice=='Y')
{ printf("\nNow input content to the file(End with '#'):\n\n");
fp=fopen(name,'w');/*把内容存放到fp指向的文件中去*/
ch=getchar();
while(ch!='#')
{ fputc(ch,fp);
ch=getchar();
}
fclose(fp);getchar();/*关闭文件*/
}
getchar();
break;
case 2:label2: /*删除文件的操作*/
clrscr();
gotoxy(25,5);printf("DELETE FILE\n");
for(j=0;j<40;j++)
printf("= ");
printf("\n\nPlease input the deleting file name and routine:\n");
scanf("%s",name); /*输入要删除的文件名*/
getchar();
printf("\n Are you sure?(Y or N):");
while(1)
{ scanf("%c",&choice);
if(choice=='y'||choice=='n'||choice=='Y'||choice=='N')
break;
else
printf("\nError!Please input again!");
}
if(choice=='y'||choice=='Y')
{status=access(name,0);/*获取文件的状态，是否存在*/
if(status!=0)
{printf("\nSorry the file doesn't exist!");
getchar();
printf("\n\nInput again?(Y or N)");
scanf("%c",&choice);getchar();
if(choice=='Y'||choice=='y')
goto label2;
}
else
{ status=access(name,02);/*获取文件的状态，是否存在并且是否只读*/
if(status!=0)
{ printf("\nSorry the file is only read!");
getchar();
}
else
{unlink(name); /*从目录中删除一个文件函数，该函数在dos.h中*/
printf("\n\ndelete succefully!");
getchar();
}
}
}
getchar();
break;
case 3:label3: /*打开文件操作*/
clrscr();
gotoxy(27,5);printf("OPEN FILE\n");
for(j=0;j<40;j++)
printf("= ");
printf("\n\nPlease input the opening file name and routine:\n");
scanf("%s",name);
status=access(name,0);/*获取文件的状态*/
if(status!=0)
{printf("\nSorry the file doesn't exist!");
getchar();
printf("\n\nInput again?(Y or N)");
scanf("%c",&choice);getchar();
if(choice=='Y'||choice=='y')
goto label3;
}
else
{ printf("\nNow begin to read the file:\n");
fp=fopen(name,'r');
ch=fgetc(fp); /*读出文件到内存*/
while(ch!=EOF)
{printf("%c",ch);
ch=fgetc(fp);j++;
}
fclose(fp);getchar();/*关闭文件*/
}
getchar();
break;
case 4:label4: /*写文件操作*/
clrscr();
gotoxy(27,5);printf("WRITE FILE\n");
for(j=0;j<40;j++)
printf("= ");
printf("\n\nPlease input the writing file name and routine:\n");
scanf("%s",name);
status=access(name,0);/*获取name指向的文件状态*/
if(status!=0)
{printf("\nSorry the file doesn't exist!");
getchar();
printf("\n\nInput again?(Y or N)");
scanf("%c",&choice);getchar();
if(choice=='Y'||choice=='y')
goto label4;
}
else
{fp=fopen(name,'w');/*以写入方式打开name 指向的文件*/
printf("\nPlease input the information(end with '#'):\n");
ch=getchar(); /*重写文件*/
while(ch!='#')
{ fputc(ch,fp);
ch=getchar();
}
fclose(fp);getchar();/*关闭文件*/
}
getchar();
break;
case 5:label5: /*定位文件操作*/
clrscr();
gotoxy(27,5);printf("LOCATE FILE\n");
for(j=0;j<40;j++)
printf("= ");
printf("\n\nPlease input the locating file name and routine:\n");
scanf("%s",name);
status=access(name,0);/*获取name文件指向的文件的状态*/
if(status!=0)
{printf("\nSorry the file doesn't exist!");
getchar();
printf("\n\nInput again?(Y or N)");
scanf("%c",&choice);getchar();
if(choice=='Y'||choice=='y')
goto label5;
}
else
{printf("\nPlease input the location:");
scanf("%d",&x);
handle=open(name,O_CREAT|O_RDWR,S_IREAD|S_IWRITE);/*打开由name指定的文件，name既可以是简单的文件名*/
/*也可以是文件的路径名，O_CREAT表示了打开文件的存取代码，若文件不存在，则建立，否则无效。*/
/*O_RDWR表示打开文件用于读写。S_IREAD|S_IWRITE允许读写*/
lseek(handle,x,SEEK_SET);/*该函数把由handle指定的文件的文件指针，移到SEEK_SET(开始位置)再加上x偏移量的地方*/
getchar();
}
getchar();
break;
case 6:label6: /*修改文件属性操作*/
clrscr();
gotoxy(27,5);printf("MODIFY FILE\n");
for(j=0;j<80;j++)
printf("= ");
printf("\n\nPlease input the modifying attribution file name and routine:\n");
scanf("%s",name);
status=access(name,0);/*获取文件的状态*/
if(status!=0)
{printf("\nSorry the file doesn't exist!");
getchar();
printf("\n\nInput again?(Y or N)");
scanf("%c",&choice);getchar();
if(choice=='Y'||choice=='y')
goto label6;
}
else
{ printf("\nPlease choice:1--READ_ONLY 2--WRITE_ONLY");
printf("\n\nPlease choice the attributione operation:");
while(1)
{ scanf("%d",&x);
if(x==1||x==2)
break;
else
printf("\nError!Please input again!");
}
if(x==1) { status=chmod(name,S_IREAD);/*修改文件为“只读”*/
if(status)
printf("\nSorry!Couldn't make the file read_only!");
else
printf("\n===Made <%s> read_only===",name);
getchar();
}
else if(x==2) /*修改文件为“只写”*/
{ status=chmod(name,S_IWRITE);
if(status)
printf("\nSorry!Couldn't make the file write_only!");
else
printf("\n===Made <%s> write_only===",name);
getchar();
}
}
getchar();
break;
case 7:clrscr(); /*复制文件的操作*/
gotoxy(27,5);printf("COPY FILE\n");
for(j=0;j<40;j++)
printf("= ");
printf("\n\nPlease input the copying file name and routine:\n");
scanf("%s",name);
getchar();
printf("\nPlease input the copyed file name and routine:\n");
scanf("%s",name1);
getchar();
strcpy(name2,"copy ");
strcat(name2,name);
strcat(name2," ");
strcat(name2,name1);
system(name2); /*系统调用dos指令*/
getchar();
break;
case 8:clrscr(); /*移动文件操作*/
gotoxy(27,5);printf("MOVE FILE\n");
for(j=0;j<40;j++)
printf("= ");
printf("\n\nPlease input the moving file name and routine:\n");
scanf("%s",name);
getchar();
printf("\nPlease input the moving file name and routine:\n");
scanf("%s",name1);
getchar();
strcpy(name2,"move ");
strcat(name2,name);
strcat(name2," ");
strcat(name2,name1);
system(name2); /*系统调用dos指令*/
getchar();
break;
case 9: label9: /*目录管理操作*/
clrscr();
gotoxy(27,5);printf("CATALOGUE MANAGE\n");
for(j=0;j<40;j++)
printf("= ");
gotoxy(13,9);
printf("Please input the moving file name and routine:\n");
gotoxy(25,11);printf("1--display catalogue");
gotoxy(25,12);printf("2--creat catalogue");
gotoxy(25,13);printf("3--detele catalogue");
gotoxy(25,14);printf("4--copy catalogue");
gotoxy(25,15);printf("5--move catalogue");
gotoxy(25,16);printf("6--exit catalogue");
gotoxy(26,20);
printf("Please choice:");
scanf("%d",&x);
while(x<1||x>6)
{printf("\nError!Please input again!\n");
scanf("%d",&x);
}
switch(x)
{ case 1: printf("\nPlease iuput the displaying catalogue:\n");
scanf("%s",name);/*县是目录操作*/
strcpy(name2,"dir ");/*复制dir命令*/
strcat(name2, name);
printf("%s",name2);
getchar();
system(name2);/*系统调用*/
getchar();
break;
case 2: printf("\nPlease iuput the creating catalogue:\n");
scanf("%s",name);/*创建目录操作*/
strcpy(name2,"md ");/*复制md命令*/
strcat(name2,name);
system(name2);/*系统调用*/
getchar();
break;
case 3: printf("\nPlease iuput the deleting catalogue:\n");
scanf("%s",name);/*删除目录操作*/
strcpy(name2,"rd ");/*复制rd命令*/
strcat(name2,name);
system(name2);
getchar();
break;
case 4: printf("\nPlease iuput the copying catalogue:\n");
scanf("%s",name);/*复制目录操作*/
printf("\nPlease iuput the displayed catalogue:\n");
scanf("%s",name1);
strcpy(name2,"xcopy ");/*复制xcopy命令*/
strcat(name2,name);
strcat(name2," ");
strcat(name2,name1);
strcat(name2,"/e");
system(name2);/*系统调用*/
getchar();break;
case 5: printf("\nPlease iuput the moving catalogue:\n");
scanf("%s",name);/*移动目录操作*/
printf("\nPlease iuput the moved catalogue:\n");
scanf("%s",name1);
strcpy(name2,"move ");/*复制move命令*/
strcat(name2,name);
strcat(name2," ");
strcat(name2,name1);
system(name2);
getchar();break;
case 6:goto tag; /*退出目录管理操作*/
}
printf("Input again?(Y or N)");
scanf("%c",&choice);getchar();
if(choice=='Y'||choice=='y')
goto label9;
tag:getchar();
break;
case 10:flag=0;exit(0);break; /*退出文件管理系统程序*/
default: clrscr();
printf("\n\n Error!Please input again!\n");
getchar();
break;
}
}
}
}
