C语言遍历所有文件的函数!

Question

要求统计出电脑上所有的.exe 文件的个数 文件名!
最好用C语言实现,不过也可以用DELPHI 或是C++
想要的是关于递归的算法! 希望大家能帮助我~

Answer 1

#include <stdio.h>
#include <dos.h>
#include <errno.h>
#include <io.h>
#include <dirent.h>
#include <dir.h>
#include <string.h>
#include <sys\stat.h>

#include "pm03a.h"

void main(int argc,char* argv[])
{
//printf("Number %d\n",ConfirmFileAttrib(argv[1]));
GetDirectory(argv[1]);
printf("\nSearch Over.\n");
}

//------------------------------------------------------------------
//pm03a.h
//------------------------------------------------------------------

void GetDirectory(char *DirectoryName);
int ConfirmFileAttrib(char* filename);
char *GetCurrentPath();
char* GetFullFileName(char *filename);
char *WillDeleteFile(char *FileName);
//--------------------------------------------------------
//--------------- 获得文件属性 ---------------------------
//--------------------------------------------------------
int ConfirmFileAttrib(char* filename)
{
int temp=0;
int attrib=(_rtl_chmod(filename,0));

if(attrib==-1)
{
switch(errno)
{
case ENOENT:
//printf("%s Path or file not found.\n",filename);
temp=0;
break;
case EACCES:
//printf("Permission denied.\n");
temp=-1;
break;
default:
//printf("Error number: %d", errno);
temp=-2;
break;
}
}
else
{
if(attrib & FA_RDONLY)
{
temp=1;
//printf("%s is read-only.\n", filename);
}
if(attrib & FA_HIDDEN)
{
temp=2;
//printf("%s is hidden.\n", filename);
}
if(attrib & FA_SYSTEM)
{
temp=3;
//printf("%s is a system file.\n", filename);
}
if(attrib & FA_DIREC)
{
temp=4;
//printf("%s is a directory.\n", filename);
}
if (attrib & FA_ARCH)
{
temp=5;
//printf("%s is an archive file.\n", filename);
}
}
return temp;
}
//--------------------------------------------------------

//--------------------------------------------------------
//--------------- 获取目录流 -----------------------------
//--------------------------------------------------------
void GetDirectory(char *DirectoryName)
{
DIR* Directory_Point;
struct dirent *entry;
bool DirControl;

if((Directory_Point=opendir(DirectoryName))==NULL)
{
printf("Error opening directory!\n");
return;
}
else
{
if(strcmp(DirectoryName,"..")==0)
{
return;
}
if(strcmp(DirectoryName,".")==0)
DirControl=true;
else
DirControl=false;

chdir(DirectoryName);

//char *filename=DirectoryName;
//int k=creat(strcat(filename,".txt"),S_IWRITE);

while(bool(entry=readdir(Directory_Point)))
{
if(ConfirmFileAttrib(entry->d_name)==5) // 确定为文件属性
{
// 文件过滤
WillDeleteFile(entry->d_name);
}
if(ConfirmFileAttrib(entry->d_name)==4) // 确定为目录属性
{
if(strcmpi(entry->d_name,"..")==0||strcmpi(entry->d_name,".")==0)
{
continue;
}
else
{
//printf("\n%s is direct\n\n",entry->d_name);
GetDirectory(entry->d_name);
}
}
}
if(!DirControl==true)
chdir("..");
closedir(Directory_Point);
}
}
//--------------------------------------------------------

//--------------------------------------------------------
//---------- 判断文件类型以备过滤 ------------------------
//--------------------------------------------------------

char* GetFullFileName(char *filename)
{
char *FullFilename=GetCurrentPath();
if(strlen(FullFilename)<=3)
{
strcat(FullFilename,filename);
}
else
{
strcat(FullFilename,"\\");
strcat(FullFilename,filename);
}
return FullFilename;
}

char *GetCurrentPath()
{
char path[1024]="";
strcpy(path, "X:\\"); /* fill string with form of response: X:\ */
path[0] = 'A' + getdisk(); /* replace X with current drive letter */
getcurdir(0, path+3); /* fill rest of string with current directory */
return path;
}

char *WillDeleteFile(char *FileName)
{
int len;
for(len=strlen(FileName);len>=0;len--)
{
if(FileName[len]=='.')
break;
}

char* Retname;

int s=-1;
for(int i=len;i<=strlen(FileName);i++)
{
Retname[s+=1]=FileName[i];
}

int i=-1;

if(Retname[1]=='~')i=0;
if(strcmpi(Retname,".bak")==0)i=0;
if(strcmpi(Retname,".obj")==0)i=0;
if(strcmpi(Retname,".tds")==0)i=0;
if(strcmpi(Retname,".dcu")==0)i=0;
if(strcmpi(Retname,".tmp")==0)i=0;
if(strcmpi(Retname,".ilk")==0)i=0;
if(strcmpi(Retname,".pch")==0)i=0;
if(strcmpi(Retname,".pdb")==0)i=0;
if(strcmpi(Retname,".tlb")==0)i=0;
if(strcmpi(Retname,".idb")==0)i=0;
if(strcmpi(Retname,".pdb")==0)i=0;
if(strcmpi(Retname,".r$p")==0)i=0;
if(strcmpi(Retname,".OBR")==0)i=0;
if(strcmpi(Retname,".mbt")==0)i=0;
if(strcmpi(Retname,".mrt")==0)i=0;
if(strcmpi(Retname,".csm")==0)i=0;

if(i==0)
{
remove(GetFullFileName(FileName));
printf("%s delete\n",GetFullFileName(FileName));
}

return Retname;
}

Answer 2

既然限定了windows，你干吗不用win+F呢？