linux下的文件系统，相对于jffs、yaffs和yaffs2来讲，具有启动速度快、占用内存小的特点。但是一个文件占用一个block限制了它所能创建的最大文件数。可以方便的一直到嵌入式系统。-under the linux file system, as opposed to jffs, yaffs and yaffs2 speaking, have to start fast, small memory characteristics. However, a block occupied b