Soft links use file or directory names, which may be relative or absolute.
软链接使用文件名或目录名，这些名称可能是相对或绝对的。
2
Soft links can cross file system boundaries.
软链接可以跨越文件系统界线。
3
Deleting a soft link does not delete the target file or directory, and deleting the target file or directory does not automatically remove any soft links.