有没有办法列出给定路径中的所有文件夹,子文件夹和文件?例如:(c:\ myfolder),并为其中包含的每个文件和文件夹打印完整路径?
c:\myfolder\folder1\
c:\myfolder\folder2\
c:\myfolder\folder2\f1
c:\myfolder\folder2\f2\g1
c:\myfolder\test.txt
c:\myfolder\t.txt
我找到了这个示例,但仅针对linux设计:
int is_directory_we_want_to_list(const char *parent, char *name) {
struct stat st_buf;
if (!strcmp(".", name) || !strcmp("..", name))
return 0;
char *path = alloca(strlen(name) + strlen(parent) + 2);
sprintf(path, "%s/%s", parent, name);
stat(path, &st_buf);
return S_ISDIR(st_buf.st_mode);
}
int list(const char *name) {
DIR *dir = opendir(name);
struct dirent *ent;
while (ent = readdir(dir)) {
char *entry_name = ent->d_name;
printf("%s\n", entry_name);
if (is_directory_we_want_to_list(name, entry_name)) {
// You can consider using alloca instead.
char *next = malloc(strlen(name) + strlen(entry_name) + 2);
sprintf(next, "%s/%s", name, entry_name);
list(next);
free(next);
}
}
closedir(dir);
}
正如@purplepsycho所建议的那样,最简单的方法是使用FindFirstFile,FindNextFile和FileClose。
但是与Unix版本还是有一些区别:您必须搜索像这样的名称,folder\*
而不是浏览目录,FindFirstFile
给出名字,然后使用来获得其他名称FindNextFile
。
这是完整的代码示例:
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#ifdef UNICODE
#define fmt "%S"
#else
#define fmt "%s"
#endif
void process_file(LPCTSTR filename) {
// TODO: implement actual file processing
printf(fmt, filename);
fputs("\n", stdout);
}
void process_folder(LPCTSTR foldername) {
WIN32_FIND_DATA findFileData;
HANDLE handle;
LPTSTR newfolder = malloc(sizeof(TCHAR) *(_tcslen(foldername) + 3)); // add some room for the additional \*
_tcscpy(newfolder, foldername);
_tcscat(newfolder, _T("\\*"));
handle = FindFirstFile(newfolder, &findFileData);
if (handle != INVALID_HANDLE_VALUE) {
while(1) {
// skip . and .. to avoid infinite recursion
if ((_tccmp(findFileData.cFileName, _T(".")) != 0) && (_tccmp(findFileData.cFileName, _T("..")) != 0)) {
// compute name as folder\filename
LPTSTR newname = malloc(sizeof(TCHAR) * (_tcslen(foldername) + _tcslen(findFileData.cFileName) + 2));
_tcscpy(newname, foldername);
_tcscat(newname, _T("\\"));
_tcscat(newname, findFileData.cFileName);
if ((findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0) {
process_folder(newname); // recurse if is is a directory
}
else {
process_file(newname); // process other files
}
free(newname); // consistenly free any malloc
}
if (FindNextFile(handle, &findFileData) == FALSE) break; // exit the loop when folder is exhausted
}
FindClose(handle);
}
free(newfolder);
}
int _tmain(int argc, TCHAR *argv[]) {
if (argc != 2) {
fputs("Usage: ", stderr);
fprintf(stderr, fmt, argv[0]);
fputs(" top_folder\n", stderr);
return 1;
}
process_folder(argv[1]);
return 0;
}
上面的代码仍然缺少一些错误条件处理,但是是Windows上递归使用Find {First | Next} File的示例。
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