1需要包含的头文件:
# include
# include
# include
# include
# include
2常用函数:
int mkdir (const char *路径,mode_t模式);创建一个目录
DIR * opendir (const char *路径),打开一个目录
struct dirent * readdir (DIR * DIR);读取目录
空白rewinddir (DIR * DIR);
off_t telldir (DIR * DIR);返回读取目录的偏移量
空白seekdir (DIR * DIR, off_t);
int closedir (DIR * DIR);