LICENSE

                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

                            Preamble

  The GNU General Public License is a free, copyleft license for
software and other kinds of works.

  The licenses for most software and other practical works are designed
to take away your freedom to share and change the works.  By contrast,
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software for all its users.  We, the Free Software Foundation, use the
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  When we speak of free software, we are referring to freedom, not
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  Developers that use the GNU GPL protect your rights with two steps:
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                       TERMS AND CONDITIONS

  0. Definitions.

  "This License" refers to version 3 of the GNU General Public License.

  "Copyright" also means copyright-like laws that apply to other kinds of
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  "The Program" refers to any copyrightable work licensed under this
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  A "covered work" means either the unmodified Program or a work based
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  To "propagate" a work means to do anything with it that, without
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  To "convey" a work means any kind of propagation that enables other
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  1. Source Code.

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  The Corresponding Source need not include anything that users
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  The Corresponding Source for a work in source code form is that
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  All rights granted under this License are granted for the term of
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  You may convey verbatim copies of the Program's source code as you
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keep intact all notices of the absence of any warranty; and give all
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  You may charge any price or no price for each copy that you convey,
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    b) The work must carry prominent notices stating that it is
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    c) You must license the entire work, as a whole, under this
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  A compilation of a covered work with other separate and independent
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beyond what the individual works permit.  Inclusion of a covered work
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  6. Conveying Non-Source Forms.

  You may convey a covered work in object code form under the terms
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    customarily used for software interchange.

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    long as you offer spare parts or customer support for that product
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    copy of the Corresponding Source for all the software in the
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    d) Convey the object code by offering access from a designated
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  A separable portion of the object code, whose source code is excluded
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  A "User Product" is either (1) a "consumer product", which means any
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  If you convey an object code work under this section in, or with, or
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  The requirement to provide Installation Information does not include a
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  Corresponding Source conveyed, and Installation Information provided,
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unpacking, reading or copying.

  7. Additional Terms.

  "Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law.  If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.

  When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it.  (Additional permissions may be written to require their own
removal in certain cases when you modify the work.)  You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.

  Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:

    a) Disclaiming warranty or limiting liability differently from the
    terms of sections 15 and 16 of this License; or

    b) Requiring preservation of specified reasonable legal notices or
    author attributions in that material or in the Appropriate Legal
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    c) Prohibiting misrepresentation of the origin of that material, or
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  All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10.  If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
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a further restriction but permits relicensing or conveying under this
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  Additional terms, permissive or non-permissive, may be stated in the
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the above requirements apply either way.

  8. Termination.

  You may not propagate or modify a covered work except as expressly
provided under this License.  Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).

  However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.

  Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
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your receipt of the notice.

  Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License.  If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.

  9. Acceptance Not Required for Having Copies.

  You are not required to accept this License in order to receive or
run a copy of the Program.  Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance.  However,
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  10. Automatic Licensing of Downstream Recipients.

  Each time you convey a covered work, the recipient automatically
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  You may not impose any further restrictions on the exercise of the
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  A contributor's "essential patent claims" are all patent claims
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  Each contributor grants you a non-exclusive, worldwide, royalty-free
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  In the following three paragraphs, a "patent license" is any express
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  If you convey a covered work, knowingly relying on a patent license,
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actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
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  If, pursuant to or in connection with a single transaction or
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work and works based on it.

  A patent license is "discriminatory" if it does not include within
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or that patent license was granted, prior to 28 March 2007.

  Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
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  12. No Surrender of Others' Freedom.

  If conditions are imposed on you (whether by court order, agreement or
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the Program, the only way you could satisfy both those terms and this
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  13. Use with the GNU Affero General Public License.

  Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
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section 13, concerning interaction through a network will apply to the
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  14. Revised Versions of this License.

  The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time.  Such new versions will
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  Each version is given a distinguishing version number.  If the
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Foundation.  If the Program does not specify a version number of the
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  If the Program specifies that a proxy can decide which future
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  Later license versions may give you additional or different
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  15. Disclaimer of Warranty.

  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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  16. Limitation of Liability.

  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
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  17. Interpretation of Sections 15 and 16.

  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

                     END OF TERMS AND CONDITIONS

            How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    Copyright (C) 2022 ybw0014
    Email: i@guizhanss.com

    This program is free software: you can redistribute it and/or modify
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    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    You should have received a copy of the GNU General Public License
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  The GNU General Public License does not permit incorporating your program
into proprietary programs.  If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.  But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.