* 搜索一个文件夹下的符合条件的文件
bool searchFile(const char* directory, vector
& files, const char* ext, int subdir_level)
const char* dir_path = directory;
DIR *dir = nullptr;
//打开文件夹
if((dir = opendir(dir_path)) == nullptr)
return false;
struct dirent entry;
struct dirent* result;
struct stat file_stat;
char cur_name[SEARCH_PATH_LENGTH];
//读取文件夹下的一个文件
while(readdir_r(dir, &entry, &result) == 0 && result)
const char* name = entry.d_name;
//忽略掉.和..
if(strcmp(name, ".") == 0 || strcmp(name, "..") == 0)
continue;
//检查拼接路径
int count = sprintf(cur_name, "%s", dir_path);
count += sprintf(&cur_name[count], "%s%s", cur_name[count - 1] == '/' ? "" : "/", name);
//获取文件的状态
if(lstat(cur_name, &file_stat) != -1)
//文件是普通文件
if(!S_ISDIR(file_stat.st_mode))
const char* rf = strrchr(cur_name, '.');
//检查文件的后缀名
if(rf != nullptr && strcmp(rf + 1, ext) == 0)
files.push_back(string(cur_name, count));
//文件是文件夹
else if(subdir_level >= 0)
//递归获取下一层目录的文件
searchFile(cur_name, files, ext, subdir_level - 1);
closedir(dir);
return true;
