如何用C实现遍历文件夹?
我是个C语言的初学者 才开始写东西
最近准备写个批量文件更新工具
想遍历文件夹 在网上也找到很多代码
但是没有C的 C++的用CFree单独编译可以运行
但是和C的代码一起编译 就出错
看过C++的代码 是用FindFirstFile和FindNextFile两个函数进行递归
完成功能的 但是在C的函数库里没有找到这类搜索文件的函数
希望高手能指点下
不胜感激
[解决办法]
标准C是没有目录相关的函数的
CFree是16位的吧,那就更不用想了.貌似只能内嵌汇编使用dos中断来完成.
还是换编译器吧devcpp codeblock vc8 之类的都很好
[解决办法]
这个要用到windows API
HANDLE FindFirstFile(
LPCTSTR lpFileName,
LPWIN32_FIND_DATA lpFindFileData
);
BOOL FindNextFile(
HANDLE hFindFile,
LPWIN32_FIND_DATA lpFindFileData
);
WIN32_FIND_DATA
[解决办法]
在Win32平台下不用windows api,有好多功能实现起来都很费劲,特别是系统相关的
再说用api又不是什么丢人的事。开发可移植程序除外。
用FindFirstFile和FindNextFile两个api很容易实现
////////////////////////////////////////////////
void FindFile(LPCTSTR lpszPath) {
TCHAR szFind[MAX_PATH];
lstrcpy(szFind,lpszPath);
if(!IsRoot(szFind)) lstrcat(szFind, "\\ ");
lstrcat(szFind, "*.* ");
WIN32_FIND_DATA wfd;
HANDLE hFind=FindFirstFile(szFind,&wfd);
if(hFind==INVALID_HANDLE_VALUE) return;
do{
if(lstrcmp(wfd.cFileName, ". ")==0||lstrcmp(wfd.cFileName, ".. ")==0) continue;
char szFile[MAX_PATH];
lstrcpy(szFile,lpszPath);
if(!IsRoot(szFile)) lstrcat(szFile, "\\ ");
lstrcat(szFile,wfd.cFileName);
if((GetFileAttributes(szFile)&FILE_ATTRIBUTE_DIRECTORY)==FILE_ATTRIBUTE_DIRECTORY){
FindFile(szFile); //递归
}
else {
} //Do your things
}
} while (FindNextFile(hFind,&wfd));
CloseHandle(hFind);
}
[解决办法]
点上面的“管理”。
[解决办法]
分可是个好东西。呵呵,你以后就明白了。
[解决办法]
DEV C++, 利用链表实现目录内所有文件列表显示
#include <stdio.h>
#include <dirent.h>
/*#include <alloc.h> */
#include <string.h>
void main(int argc,char *argv[])
{
DIR *directory_pointer;
struct dirent *entry;
struct FileList
{
char filename[64];
struct FileList *next;
}start,*node;
if (argc!=2)
{
printf( "Must specify a directory\n ");
exit(1);
}
if ((directory_pointer=opendir(argv[1]))==NULL)
printf( "Error opening %s\n ",argv[1]);
else
{
start.next=NULL;
node=&start;
while ((entry=readdir(directory_pointer))!=NULL)
{
node-> next=(struct FileList *)malloc(sizeof(struct FileList));
node=node-> next;
strcpy(node-> filename,entry-> d_name);
node-> next=NULL;
}
closedir(directory_pointer);
node=start.next;
while(node)
{
printf( "%s\n ",node-> filename);
node=node-> next;
}
}
}
[解决办法]
linux下面的,作者不是我
A Demo written by camelrain
/*
the program find a file from current directory or your defined directory
commond optinon [path] filename
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <pwd.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#define LENGTH 256
/* just if is a directory*/
static int IsDir (char * name);
/* search target file, arg1 is current path, arg2 is target file*/
static void search_file (char * path, char * name);
static int search_flag=0;
/*just if is a directory*/
static int IsDir (char * name) {
struct stat buff;
if (lstat(name,&buff) <0)
return 0; //if not exist name ,ignore
/*if is directory return 1 ,else return 0*/
return S_ISDIR(buff.st_mode);
}
/*search target file*/
static void search_file (char * path, char * name) {
DIR *directory;
struct dirent * dir_entry;
char buffer[LENGTH];
if ((directory=opendir(path)) == NULL) {
fprintf(stderr, "%s ", path);
perror( " ");
return;
}
while (dir_entry=readdir(directory)) {
if (!strcmp(dir_entry-> d_name, ". ")||!strcmp(dir_entry-> d_name, ".. ")) {
/* do nothing*/
}
else {
/* if is boot directory add "/ " */
if ((strcmp(path, "/ "))==0)
sprintf(buffer, "%s%s ",path,dir_entry-> d_name);
/* if is not boot directory do not add "/ "*/
else
sprintf(buffer, "%s/%s ",path,dir_entry-> d_name);
//printf( "Now file : %s\n ",buffer);
if (IsDir(buffer))
search_file (buffer , name);
else {
if (strcmp(dir_entry-> d_name,name)==0)
{
printf( "%s\n ",buffer);
search_flag=1;
}
}
}
}
closedir(directory);
}
int main(int argc, char *argv[])
{
static char * current_dir;
static char * filename;
int length;
if (argc==1) {
printf( "A few parameters!!\n ");
return 0;
}
if (argc==2) {
current_dir=(char * )getcwd(current_dir,LENGTH);
filename=argv[1];
}
if (argc==3) {
length=strlen(argv[1]);
if (length> 1 && (argv[1][length-1]== '/ ')) {
argv[1][length-1]= '\0 ';
//printf( "%d\n ",strlen(argv[1]));
}
current_dir=argv[1];
filename=argv[2];
}
search_file(current_dir,filename);
if (!search_flag)
printf( "Not found this(%s) file!\n ",filename);
return 0;
}
[解决办法]
VC 下的:
long handle;
struct _finddata_t filestruct;
char path_search[_MAX_PATH];
handle = _findfirst( "目录 ",&filestruct);
if((handle == -1)) return;
if( ::GetFileAttributes(filestruct.name)& FILE_ATTRIBUTE_DIRECTORY )
{
if( filestruct.name[0] != '. ' )
{
_chdir(filestruct.name);
Search_Directory(szFilename);
_chdir( ".. ");
}
}
else
{
if( !stricmp(filestruct.name, szFilename) )
{
strcat(path_search, "\\ ");
strcat(path_search,filestruct.name);
MessageBox(path_search);
}
}
while(!(_findnext(handle,&filestruct)))
{
if( ::GetFileAttributes(filestruct.name) &FILE_ATTRIBUTE_DIRECTORY )
{
if(*filestruct.name != '. ')
{
_chdir(filestruct.name);
Search_Directory(szFilename);
_chdir( ".. ");
}
else
{
if(!stricmp(filestruct.name,szFilename))
{
_getcwd(path_search,_MAX_PATH);
strcat(path_search, "\\ ");
strcat(path_search,filestruct.name);
MessageBox(path_search);
}
}
}
_findclose(handle);
}
[解决办法]
强贴,留名,学习了...
[解决办法]
全是四星级的,收藏
[解决办法]
收藏了 多谢瞌睡虫
[解决办法]
都写得很清楚了