there are two kinds of links: a hard link and a symbolic link.
有两种类型的链接:硬链接和符号链接。
a hard link is a directory entry that points to an inode, while a soft link or symbolic link is a directory entry that points to an inode that provides the name of another directory entry.
however, a hard link makes it appear as though the file or folder actually exists at the location of the symbolic link, and your applications won」t know any different.