吴尤
4 years ago
@ -0,0 +1,339 @@
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 2, June 1991
|
||||
|
||||
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
|
||||
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The licenses for most software are designed to take away your
|
||||
freedom to share and change it. By contrast, the GNU General Public
|
||||
License is intended to guarantee your freedom to share and change free
|
||||
software--to make sure the software is free for all its users. This
|
||||
General Public License applies to most of the Free Software
|
||||
Foundation's software and to any other program whose authors commit to
|
||||
using it. (Some other Free Software Foundation software is covered by
|
||||
the GNU Lesser General Public License instead.) You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
this service if you wish), that you receive source code or can get it
|
||||
if you want it, that you can change the software or use pieces of it
|
||||
in new free programs; and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to make restrictions that forbid
|
||||
anyone to deny you these rights or to ask you to surrender the rights.
|
||||
These restrictions translate to certain responsibilities for you if you
|
||||
distribute copies of the software, or if you modify it.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must give the recipients all the rights that
|
||||
you have. You must make sure that they, too, receive or can get the
|
||||
source code. And you must show them these terms so they know their
|
||||
rights.
|
||||
|
||||
We protect your rights with two steps: (1) copyright the software, and
|
||||
(2) offer you this license which gives you legal permission to copy,
|
||||
distribute and/or modify the software.
|
||||
|
||||
Also, for each author's protection and ours, we want to make certain
|
||||
that everyone understands that there is no warranty for this free
|
||||
software. If the software is modified by someone else and passed on, we
|
||||
want its recipients to know that what they have is not the original, so
|
||||
that any problems introduced by others will not reflect on the original
|
||||
authors' reputations.
|
||||
|
||||
Finally, any free program is threatened constantly by software
|
||||
patents. We wish to avoid the danger that redistributors of a free
|
||||
program will individually obtain patent licenses, in effect making the
|
||||
program proprietary. To prevent this, we have made it clear that any
|
||||
patent must be licensed for everyone's free use or not licensed at all.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
|
||||
|
||||
0. This License applies to any program or other work which contains
|
||||
a notice placed by the copyright holder saying it may be distributed
|
||||
under the terms of this General Public License. The "Program", below,
|
||||
refers to any such program or work, and a "work based on the Program"
|
||||
means either the Program or any derivative work under copyright law:
|
||||
that is to say, a work containing the Program or a portion of it,
|
||||
either verbatim or with modifications and/or translated into another
|
||||
language. (Hereinafter, translation is included without limitation in
|
||||
the term "modification".) Each licensee is addressed as "you".
|
||||
|
||||
Activities other than copying, distribution and modification are not
|
||||
covered by this License; they are outside its scope. The act of
|
||||
running the Program is not restricted, and the output from the Program
|
||||
is covered only if its contents constitute a work based on the
|
||||
Program (independent of having been made by running the Program).
|
||||
Whether that is true depends on what the Program does.
|
||||
|
||||
1. You may copy and distribute verbatim copies of the Program's
|
||||
source code as you receive it, in any medium, provided that you
|
||||
conspicuously and appropriately publish on each copy an appropriate
|
||||
copyright notice and disclaimer of warranty; keep intact all the
|
||||
notices that refer to this License and to the absence of any warranty;
|
||||
and give any other recipients of the Program a copy of this License
|
||||
along with the Program.
|
||||
|
||||
You may charge a fee for the physical act of transferring a copy, and
|
||||
you may at your option offer warranty protection in exchange for a fee.
|
||||
|
||||
2. You may modify your copy or copies of the Program or any portion
|
||||
of it, thus forming a work based on the Program, and copy and
|
||||
distribute such modifications or work under the terms of Section 1
|
||||
above, provided that you also meet all of these conditions:
|
||||
|
||||
a) You must cause the modified files to carry prominent notices
|
||||
stating that you changed the files and the date of any change.
|
||||
|
||||
b) You must cause any work that you distribute or publish, that in
|
||||
whole or in part contains or is derived from the Program or any
|
||||
part thereof, to be licensed as a whole at no charge to all third
|
||||
parties under the terms of this License.
|
||||
|
||||
c) If the modified program normally reads commands interactively
|
||||
when run, you must cause it, when started running for such
|
||||
interactive use in the most ordinary way, to print or display an
|
||||
announcement including an appropriate copyright notice and a
|
||||
notice that there is no warranty (or else, saying that you provide
|
||||
a warranty) and that users may redistribute the program under
|
||||
these conditions, and telling the user how to view a copy of this
|
||||
License. (Exception: if the Program itself is interactive but
|
||||
does not normally print such an announcement, your work based on
|
||||
the Program is not required to print an announcement.)
|
||||
|
||||
These requirements apply to the modified work as a whole. If
|
||||
identifiable sections of that work are not derived from the Program,
|
||||
and can be reasonably considered independent and separate works in
|
||||
themselves, then this License, and its terms, do not apply to those
|
||||
sections when you distribute them as separate works. But when you
|
||||
distribute the same sections as part of a whole which is a work based
|
||||
on the Program, the distribution of the whole must be on the terms of
|
||||
this License, whose permissions for other licensees extend to the
|
||||
entire whole, and thus to each and every part regardless of who wrote it.
|
||||
|
||||
Thus, it is not the intent of this section to claim rights or contest
|
||||
your rights to work written entirely by you; rather, the intent is to
|
||||
exercise the right to control the distribution of derivative or
|
||||
collective works based on the Program.
|
||||
|
||||
In addition, mere aggregation of another work not based on the Program
|
||||
with the Program (or with a work based on the Program) on a volume of
|
||||
a storage or distribution medium does not bring the other work under
|
||||
the scope of this License.
|
||||
|
||||
3. You may copy and distribute the Program (or a work based on it,
|
||||
under Section 2) in object code or executable form under the terms of
|
||||
Sections 1 and 2 above provided that you also do one of the following:
|
||||
|
||||
a) Accompany it with the complete corresponding machine-readable
|
||||
source code, which must be distributed under the terms of Sections
|
||||
1 and 2 above on a medium customarily used for software interchange; or,
|
||||
|
||||
b) Accompany it with a written offer, valid for at least three
|
||||
years, to give any third party, for a charge no more than your
|
||||
cost of physically performing source distribution, a complete
|
||||
machine-readable copy of the corresponding source code, to be
|
||||
distributed under the terms of Sections 1 and 2 above on a medium
|
||||
customarily used for software interchange; or,
|
||||
|
||||
c) Accompany it with the information you received as to the offer
|
||||
to distribute corresponding source code. (This alternative is
|
||||
allowed only for noncommercial distribution and only if you
|
||||
received the program in object code or executable form with such
|
||||
an offer, in accord with Subsection b above.)
|
||||
|
||||
The source code for a work means the preferred form of the work for
|
||||
making modifications to it. For an executable work, complete source
|
||||
code means all the source code for all modules it contains, plus any
|
||||
associated interface definition files, plus the scripts used to
|
||||
control compilation and installation of the executable. However, as a
|
||||
special exception, the source code distributed need not include
|
||||
anything that is normally distributed (in either source or binary
|
||||
form) with the major components (compiler, kernel, and so on) of the
|
||||
operating system on which the executable runs, unless that component
|
||||
itself accompanies the executable.
|
||||
|
||||
If distribution of executable or object code is made by offering
|
||||
access to copy from a designated place, then offering equivalent
|
||||
access to copy the source code from the same place counts as
|
||||
distribution of the source code, even though third parties are not
|
||||
compelled to copy the source along with the object code.
|
||||
|
||||
4. You may not copy, modify, sublicense, or distribute the Program
|
||||
except as expressly provided under this License. Any attempt
|
||||
otherwise to copy, modify, sublicense or distribute the Program is
|
||||
void, and will automatically terminate your rights under this License.
|
||||
However, parties who have received copies, or rights, from you under
|
||||
this License will not have their licenses terminated so long as such
|
||||
parties remain in full compliance.
|
||||
|
||||
5. You are not required to accept this License, since you have not
|
||||
signed it. However, nothing else grants you permission to modify or
|
||||
distribute the Program or its derivative works. These actions are
|
||||
prohibited by law if you do not accept this License. Therefore, by
|
||||
modifying or distributing the Program (or any work based on the
|
||||
Program), you indicate your acceptance of this License to do so, and
|
||||
all its terms and conditions for copying, distributing or modifying
|
||||
the Program or works based on it.
|
||||
|
||||
6. Each time you redistribute the Program (or any work based on the
|
||||
Program), the recipient automatically receives a license from the
|
||||
original licensor to copy, distribute or modify the Program subject to
|
||||
these terms and conditions. You may not impose any further
|
||||
restrictions on the recipients' exercise of the rights granted herein.
|
||||
You are not responsible for enforcing compliance by third parties to
|
||||
this License.
|
||||
|
||||
7. If, as a consequence of a court judgment or allegation of patent
|
||||
infringement or for any other reason (not limited to patent issues),
|
||||
conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot
|
||||
distribute so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you
|
||||
may not distribute the Program at all. For example, if a patent
|
||||
license would not permit royalty-free redistribution of the Program by
|
||||
all those who receive copies directly or indirectly through you, then
|
||||
the only way you could satisfy both it and this License would be to
|
||||
refrain entirely from distribution of the Program.
|
||||
|
||||
If any portion of this section is held invalid or unenforceable under
|
||||
any particular circumstance, the balance of the section is intended to
|
||||
apply and the section as a whole is intended to apply in other
|
||||
circumstances.
|
||||
|
||||
It is not the purpose of this section to induce you to infringe any
|
||||
patents or other property right claims or to contest validity of any
|
||||
such claims; this section has the sole purpose of protecting the
|
||||
integrity of the free software distribution system, which is
|
||||
implemented by public license practices. Many people have made
|
||||
generous contributions to the wide range of software distributed
|
||||
through that system in reliance on consistent application of that
|
||||
system; it is up to the author/donor to decide if he or she is willing
|
||||
to distribute software through any other system and a licensee cannot
|
||||
impose that choice.
|
||||
|
||||
This section is intended to make thoroughly clear what is believed to
|
||||
be a consequence of the rest of this License.
|
||||
|
||||
8. If the distribution and/or use of the Program is restricted in
|
||||
certain countries either by patents or by copyrighted interfaces, the
|
||||
original copyright holder who places the Program under this License
|
||||
may add an explicit geographical distribution limitation excluding
|
||||
those countries, so that distribution is permitted only in or among
|
||||
countries not thus excluded. In such case, this License incorporates
|
||||
the limitation as if written in the body of this License.
|
||||
|
||||
9. The Free Software Foundation may publish revised and/or new versions
|
||||
of the General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the Program
|
||||
specifies a version number of this License which applies to it and "any
|
||||
later version", you have the option of following the terms and conditions
|
||||
either of that version or of any later version published by the Free
|
||||
Software Foundation. If the Program does not specify a version number of
|
||||
this License, you may choose any version ever published by the Free Software
|
||||
Foundation.
|
||||
|
||||
10. If you wish to incorporate parts of the Program into other free
|
||||
programs whose distribution conditions are different, write to the author
|
||||
to ask for permission. For software which is copyrighted by the Free
|
||||
Software Foundation, write to the Free Software Foundation; we sometimes
|
||||
make exceptions for this. Our decision will be guided by the two goals
|
||||
of preserving the free status of all derivatives of our free software and
|
||||
of promoting the sharing and reuse of software generally.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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 OF ANY KIND, EITHER EXPRESSED
|
||||
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
|
||||
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
|
||||
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
|
||||
REPAIR OR CORRECTION.
|
||||
|
||||
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
|
||||
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
|
||||
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
|
||||
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||||
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||||
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGES.
|
||||
|
||||
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
|
||||
convey the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 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
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License along
|
||||
with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program is interactive, make it output a short notice like this
|
||||
when it starts in an interactive mode:
|
||||
|
||||
Gnomovision version 69, Copyright (C) year name of author
|
||||
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, the commands you use may
|
||||
be called something other than `show w' and `show c'; they could even be
|
||||
mouse-clicks or menu items--whatever suits your program.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1989
|
||||
Ty Coon, President of Vice
|
||||
|
||||
This 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.
|
||||
@ -0,0 +1,10 @@
|
||||
|
||||
# lemon-guide <small>1.0</small>
|
||||
> 一款优秀的开源笔记
|
||||
|
||||
- 操作系统、算法、解决方案
|
||||
- JAVA、数据库、中间件
|
||||
- 架构、DevOps、大数据
|
||||
|
||||
[Gitee](https://gitee.com/yu120/lemon-guide)
|
||||
[点击进入](./README.md)
|
||||
@ -0,0 +1,6 @@
|
||||
* 🏁分类
|
||||
* [✍操作系统](src/OS/README)
|
||||
* [✍算法](src/Algorithm/README)
|
||||
* [✍JAVA](src/JAVA/README)
|
||||
* [✍数据库](src/Database/README)
|
||||
* [✍中间件](src/Middleware/README)
|
||||
@ -0,0 +1,102 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<title>lemon-guide</title>
|
||||
<meta name="description" content="Description">
|
||||
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
|
||||
<link rel="shortcut icon" href="https://view6view.oss-cn-shanghai.aliyuncs.com/mylib/image-source/favicon.ico">
|
||||
<!-- <link rel="stylesheet" href="static/prism/prism.css"> -->
|
||||
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.3.1/styles/default.min.css">
|
||||
<link rel="stylesheet" href="static/docsify/themes/vue.css" title="vue">
|
||||
<style>
|
||||
/*列宽度自适应不换行*/
|
||||
table td { width: 10%; white-space:nowrap; }
|
||||
/*表头颜色*/
|
||||
table thead{background-color:rgb(58, 140, 201);}
|
||||
/*斑马线 */
|
||||
table tr:nth-of-type(2n){background-color:rgb(246, 249, 252);}
|
||||
table td:nth-of-type(2n){color:rgb(34, 151, 214);}
|
||||
#myTitle{
|
||||
text-align:center;
|
||||
}
|
||||
:root {
|
||||
--base-font-size: 13px;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<div id="app">正在玩命加载中...</div>
|
||||
<script src="static/docsify/lib/docsify.min.js"></script>
|
||||
|
||||
<script>
|
||||
window.$docsify = {
|
||||
name: 'lemon-guide',
|
||||
repo: 'https://gitee.com/yu120/lemon-guide',
|
||||
coverpage: true,
|
||||
maxLevel: 3,
|
||||
subMaxLevel: 4,
|
||||
loadSidebar: true,
|
||||
loadNavbar: false,
|
||||
autoHeader: true,
|
||||
auto2top: true,
|
||||
mergeNavbar: true,
|
||||
themeColor: 'rgb(34, 151, 214)',
|
||||
formatUpdated: '{YYYY}-{MM}-{DD} {HH}:{mm}:{ss}',
|
||||
notFoundPage: '404.md',
|
||||
pagination: {
|
||||
previousText: '上一篇',
|
||||
nextText: '下一篇',
|
||||
crossChapter: true
|
||||
},
|
||||
search: {
|
||||
noData: {
|
||||
'/de-de/': 'Keine Ergebnisse!',
|
||||
'/zh-cn/': '没有结果!',
|
||||
'/': 'No results!'
|
||||
},
|
||||
paths: 'auto',
|
||||
placeholder: {
|
||||
'/de-de/': 'Suche',
|
||||
'/zh-cn/': '搜索',
|
||||
'/': '🔍搜索关键字...'
|
||||
},
|
||||
depth: 2
|
||||
},
|
||||
plugins: [
|
||||
function (hook, vm) {
|
||||
hook.beforeEach(function (html) {
|
||||
|
||||
url = 'https://gitee.com/wu-you3399/lemon-guide/tree/docsify/' + vm.route.file
|
||||
|
||||
var editHtml = '[📝 edit](' + url + ')\n\n'
|
||||
|
||||
return editHtml
|
||||
+ html
|
||||
+ '\n\n----\n\n'
|
||||
+ '<a href="https://gitee.com/yu120/lemon-guide" target="_blank" style="color: inherit; font-weight: normal; text-decoration: none;">by yu120 ✈ {docsify-updated}'
|
||||
+ '</a>'
|
||||
})
|
||||
},
|
||||
]
|
||||
}
|
||||
</script>
|
||||
|
||||
<script src="static/docsify/lib/plugins/search.min.js"></script>
|
||||
|
||||
<!-- <script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-go.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-bash.min.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-csharp.min.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-swift.min.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-java.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-c.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-sql.min.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-properties.min.js"></script>
|
||||
<script src="https://cdn.bootcdn.net/ajax/libs/prism/1.19.0/components/prism-textile.min.js"></script> -->
|
||||
<!-- <script src="static/prism/prism.js"></script> -->
|
||||
<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.3.1/highlight.min.js"></script>
|
||||
|
||||
<script src="static/docsify-pagination/dist/docsify-pagination.min.js"></script>
|
||||
<script src="//cdn.jsdelivr.net/npm/docsify/lib/plugins/emoji.min.js"></script>
|
||||
</body>
|
||||
</html>
|
||||
@ -0,0 +1,107 @@
|
||||
### 递归模板
|
||||
|
||||
```java
|
||||
public void recur(int level, int param) {
|
||||
// terminator
|
||||
if (level > MAX_LEVEL) {
|
||||
// process result
|
||||
return;
|
||||
}
|
||||
|
||||
// process current logic
|
||||
process(level, param);
|
||||
|
||||
// drill down
|
||||
recur(level + 1, newParam);
|
||||
|
||||
// restore current status
|
||||
}
|
||||
```
|
||||
|
||||
**List转树形结构**
|
||||
|
||||
- **方案一：两层循环实现建树**
|
||||
- **方案二：使用递归方法建树**
|
||||
|
||||
```java
|
||||
public class TreeNode {
|
||||
private String id;
|
||||
private String parentId;
|
||||
private String name;
|
||||
private List<TreeNode> children;
|
||||
|
||||
/**
|
||||
* 方案一：两层循环实现建树
|
||||
*
|
||||
* @param treeNodes 传入的树节点列表
|
||||
* @return
|
||||
*/
|
||||
public static List<TreeNode> bulid(List<TreeNode> treeNodes) {
|
||||
List<TreeNode> trees = new ArrayList<>();
|
||||
for (TreeNode treeNode : treeNodes) {
|
||||
if ("0".equals(treeNode.getParentId())) {
|
||||
trees.add(treeNode);
|
||||
}
|
||||
|
||||
for (TreeNode it : treeNodes) {
|
||||
if (it.getParentId() == treeNode.getId()) {
|
||||
if (treeNode.getChildren() == null) {
|
||||
treeNode.setChildren(new ArrayList<TreeNode>());
|
||||
}
|
||||
treeNode.getChildren().add(it);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return trees;
|
||||
}
|
||||
|
||||
/**
|
||||
* 方案二：使用递归方法建树
|
||||
*
|
||||
* @param treeNodes
|
||||
* @return
|
||||
*/
|
||||
public static List<TreeNode> buildByRecursive(List<TreeNode> treeNodes) {
|
||||
List<TreeNode> trees = new ArrayList<>();
|
||||
for (TreeNode treeNode : treeNodes) {
|
||||
if ("0".equals(treeNode.getParentId())) {
|
||||
trees.add(findChildren(treeNode, treeNodes));
|
||||
}
|
||||
}
|
||||
|
||||
return trees;
|
||||
}
|
||||
|
||||
/**
|
||||
* 递归查找子节点
|
||||
*
|
||||
* @param treeNodes
|
||||
* @return
|
||||
*/
|
||||
private static TreeNode findChildren(TreeNode treeNode, List<TreeNode> treeNodes) {
|
||||
for (TreeNode it : treeNodes) {
|
||||
if (treeNode.getId().equals(it.getParentId())) {
|
||||
if (treeNode.getChildren() == null) {
|
||||
treeNode.setChildren(new ArrayList<>());
|
||||
}
|
||||
treeNode.getChildren().add(findChildren(it, treeNodes));
|
||||
}
|
||||
}
|
||||
|
||||
return treeNode;
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
|
||||
### 回溯模板
|
||||
|
||||
|
||||
|
||||
### DFS模板
|
||||
|
||||
|
||||
|
||||
### BFS模板
|
||||
@ -0,0 +1,5 @@
|
||||
<div style="color:#16b0ff;font-size:50px;font-weight: 900;text-shadow: 5px 5px 10px var(--theme-color);font-family: 'Comic Sans MS';">Algorithm</div>
|
||||
|
||||
<span style="color:#16b0ff;font-size:20px;font-weight: 900;font-family: 'Comic Sans MS';">Introduction</span>：收纳技术相关的 `Data Structure`、`Algorithm`、`Design Pattern`等总结！
|
||||
|
||||
## 🚀点击左侧菜单栏开始吧！
|
||||
@ -0,0 +1,21 @@
|
||||
* 🏁Data Structure
|
||||
* [✍位运算](src/Algorithm/1 "位运算")
|
||||
* [✍常用数据结构](src/Algorithm/2 "常用数据结构")
|
||||
* [✍高级数据结构](src/Algorithm/3 "高级数据结构")
|
||||
* 🏁Algorithm
|
||||
* [✍复杂度](src/Algorithm/101 "复杂度")
|
||||
* [✍算法思想](src/Algorithm/102 "算法思想")
|
||||
* [✍算法模板](src/Algorithm/103 "算法模板")
|
||||
* [✍查找算法](src/Algorithm/104 "查找算法")
|
||||
* [✍搜素算法](src/Algorithm/105 "搜素算法")
|
||||
* [✍排序算法](src/Algorithm/106 "排序算法")
|
||||
* 🏁Case
|
||||
* [✍双指针](src/Algorithm/201 "双指针")
|
||||
* [✍反转](src/Algorithm/202 "反转")
|
||||
* [✍栈](src/Algorithm/203 "栈")
|
||||
* [✍FIFO队列](src/Algorithm/204 "FIFO队列")
|
||||
* [✍单调队列](src/Algorithm/205 "单调队列")
|
||||
* 🏁Design Pattern
|
||||
* [✍创建型模式](src/Algorithm/301 "创建型模式")
|
||||
* [✍结构型模式](src/Algorithm/302 "结构型模式")
|
||||
* [✍行为型模式](src/Algorithm/303 "进程和线程")
|
||||
|
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|
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