//获得院校相册图片,从college文件夹下查询所有子文件夹
public List<string> ListFilesColleges(FileSystemInfo info)
{
List<string> image_list = new List<string>();
if (!info.Exists) return null;
DirectoryInfo dir = info as DirectoryInfo;
//不是目录
if (dir == null) return null;
FileSystemInfo[] files = dir.GetFileSystemInfos();
for (int i = 0; i < files.Length; i++)
{
string son_folder_name = files[i].Name;//获取文件夹名称
DirectoryInfo dir_college = files[i] as DirectoryInfo;
FileSystemInfo[] file_college_name = dir_college.GetFileSystemInfos();//子文件夹里面的文件
if (file_college_name.Length > 0)
{
FileInfo file = file_college_name[0] as FileInfo;
string filename = file.Name;
string fileEx = filename.Substring(filename.LastIndexOf(".") + 1).ToLower();//后缀jpg jpeg gif bmp
if (fileEx == "jpg" || fileEx == "jpeg" || fileEx == "gif" || fileEx == "bmp")
{
image_list.Add(son_folder_name + "/" + file.Name);
}
}
}
return image_list;
}