public boolean Delete(String filePath)throws IOException
    {
        FS_Function fs_fsi = FS_Function.getInstance();
        filePath = changePathToUpperCase(filePath);
        if(fs_fsi.DeleteFile(filePath))
        {
            System.out.println((new StringBuilder("File Name=")).append(filePath).append(", Delete Success").toString());
            return true;
        } 
        else
        {
            System.out.println((new StringBuilder("File Name=")).append(filePath).append(", Delete Fail").toString());
            return false;
        }
    }