inode 译成中文就是索引节点。每个存储设备或存储设备的分区（存储设备是硬盘、软盘、U盘等等）被格式化为文件系统后，应该有两部份，一部份是inode，另一部份是Block，Block是用来存储数据用的。而inode呢，就是用来存储这些数 据的信息，这些信息包括文件大小、属主、归属的用户组、读写权限等。inode为每个文件进行信息索引，所以就有了inode的数值。操作系统根据指令， 能通过inode值最快的找到相对应的文件。(The translation of inode into Chinese is the index node. Each storage device or storage device partition (storage device is hard disk, floppy disk, U disk, etc.) after being formatted into file system, there should be two parts, one is inode, the other is Block, Block is used to store data. And inode is the information that is used to store the data, including the size of the file, the owner, the user group, the read and write rights, and so on. Inode is indexed to each file, so there is a value of the inode. The operating system, based on instructions, can find the corresponding file with the fastest inode value.)