ShowDoc遵循Apache2开源协议发布。
ShowDoc在遵循Apache2开源协议之上有一条额外版权声明：
showdoc官方(https://www.showdoc.com.cn/)以及作者star7th ( https://github.com/star7th )拥有程序的版权和相应权利，
在保留程序UI界面上的版权信息和链接的前提下，可免费使用或者二次开发
如需更改版权信息或版权链接，需取得官方同意授权。

Apache Licence是著名的非盈利开源组织Apache采用的协议。
该协议和BSD类似，鼓励代码共享和尊重原作者的著作权，
允许代码修改，再作为开源或商业软件发布。需要满足
的条件： 
1． 需要给代码的用户一份Apache Licence ；
2． 如果你修改了代码，需要在被修改的文件中说明；
3． 在延伸的代码中（修改和有源代码衍生的代码中）需要
带有原来代码中的协议，商标，专利声明和其他原来作者规
定需要包含的说明；
4． 如果再发布的产品中包含一个Notice文件，则在Notice文
件中需要带有本协议内容。你可以在Notice中增加自己的
许可，但不可以表现为对Apache Licence构成更改。 
具体的协议参考：http://www.apache.org/licenses/LICENSE-2.0

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

Showdoc has an additional copyright notice on compliance with the Apache2 Open Source License:
Showdoc official（ https://www.showdoc.com.cn/ ）And author star7th（ https://github.com/star7th ）Have the copyright and corresponding rights of the program,
On the premise of retaining the copyright information and links on the program UI interface, it can be used for free or secondary development
If you need to change copyright information or copyright links, you need to obtain official consent and authorization.