import java.io.File;
import java.util.List;
// 扫描文件夹
public class FilesUntil {
    public static List getFiles(String path, List<String> save) {
        File file = new File(path);
        File[] files = file.listFiles();
        if(files==null){
            return null;
        }
        for (int i = 0; i < files.length; i++) {
            if (files[i].isDirectory()) {
                getFiles(files[i].getPath(),save);
            } else {
                save.add(files[i].getAbsolutePath());
            }
        }
        return save;
    }
}