你如何获得C中的目录列表? [英] How do you get a directory listing in C?

问题描述

如何在 C 中扫描目录中的文件夹和文件?它需要是跨平台的.

How do you scan a directory for folders and files in C? It needs to be cross-platform.

推荐答案

以下 POSIX 程序将打印当前目录下的文件名:

The following POSIX program will print the names of the files in the current directory:

#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <sys/types.h>
#include <dirent.h>

int main (void)
{
  DIR *dp;
  struct dirent *ep;     
  dp = opendir ("./");

  if (dp != NULL)
  {
    while (ep = readdir (dp))
      puts (ep->d_name);

    (void) closedir (dp);
  }
  else
    perror ("Couldn't open the directory");

  return 0;
}

来源:http://www.gnu.org/software/libtool/manual/libc/Simple-Directory-Lister.html

在 Ubuntu 16.04 中测试.

Tested in Ubuntu 16.04.

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