参考:

[问题] Could not find method compile() for arguments [directory ‘libs’]的两种情况汇总
https://blog.csdn.net/m0_52739647/article/details/119736421

Android Studio project with path '... ' could not be found in project ' app' 报错解决方案
https://blog.csdn.net/lvshuchangyin/article/details/51780431

android studio 导入源码库,Android Studio导入Android源码/调试framework的教程
https://blog.csdn.net/weixin_39819283/article/details/117610442

Android studio 引入第三方库（github开源库）
https://blog.csdn.net/shi_xin/article/details/79033886

参考:

安卓使用FileProvider.getUriForFile出现问题解决
https://blog.csdn.net/luo13788507590/article/details/98615151

Couldn‘t find meta-data for provider with authority
https://blog.csdn.net/haiyoumeizhuce/article/details/99981936

解决： Couldn‘t find meta-data for provider with authority xxx.fileProvider
https://blog.csdn.net/qq_31877171/article/details/114314648

安卓从6.0适配到7.0以上遇到的FileProvider相关问题踩坑
https://blog.csdn.net/qq_36165311/article/details/108777003

android7.0之后版本，FileProvider适配问题
https://blog.csdn.net/oudetu/article/details/78444097

Failed to find configured root that contains
https://www.cnblogs.com/fengfenghuifei/p/10725603.html

FileProvider 的使用(Failed to find configured root that contains/storage/emulated/0/DCIM/ )
https://blog.csdn.net/leilifengxingmw/article/details/57405908

java.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/0
https://blog.csdn.net/m0_46366678/article/details/113616407

java.lang.IllegalArgumentException:未能找到包含/storage/emulated/0/Pictures/的已配置根目录
https://cloud.tencent.com/developer/ask/sof/145862

java.lang.IllegalArgumentException: Failed to find configured root that contains .....
https://blog.csdn.net/liu_xueping/article/details/103980700

java.lang.IllegalArgumentException: Failed to find configured root that contains .....
https://blog.csdn.net/songzi1228/article/details/83546066

参考:

android之getContext和getActivity介绍
https://www.jianshu.com/p/b1a9eb13138a

Android getContext()是在哪个类的方法，何时候 何地方可以使用
https://blog.csdn.net/yixianaiqingling/article/details/78783185

Android 中this、getContext()、getApplicationContext()、getApplication()、getBaseContext() 之间的区别
https://www.cnblogs.com/bluestorm/p/5842891.html

参考:

Android应用内升级App/Apk升级（下载Apk并且安装）
https://juejin.cn/post/6882191830700523527

Android应用内升级App
https://www.jianshu.com/p/234426d802a0

android app开发之app本地更新
https://blog.csdn.net/l506945024/article/details/54599327

移动端APP应用版本升级更新方案：整包更新及资源在线升级（热更新）
https://www.cnblogs.com/goloving/p/14350784.html

关于app更新升级的方法
https://blog.csdn.net/qq_21153627/article/details/79399611

Android产品研发（十四）-->App升级与更新
https://blog.csdn.net/qq_23547831/article/details/51764773

DownloadManager下载Apk使用详解
https://blog.csdn.net/weimiannihao/article/details/106786816

Android开发 android7.0安装apk文件的姿势
https://blog.csdn.net/pkandroid/article/details/53716719

参考:

c++ 中 char 与 string 之间的相互转换问题
https://www.cnblogs.com/devilmaycry812839668/p/6353807.html

c++已经是字符串string了，怎么具体提取其中的某个字母
https://zhidao.baidu.com/question/388222143.html

C++ 字符串
https://www.runoob.com/cplusplus/cpp-strings.html

C++怎么从一个字符串中读取一个字符？
https://zhidao.baidu.com/question/259704265.html

C++ string substr()
https://blog.csdn.net/sunshihua12829/article/details/50484966

C++中int与string的相互转换
https://blog.csdn.net/u010510020/article/details/73799996

c++ 将一个char 转化为string
https://blog.csdn.net/carbon06/article/details/79353821

参考:

server2008r2激活密钥|winserver2008r2密钥|windows server 2008r2产品密钥
http://www.xitongcheng.com/jiaocheng/dnrj_article_46791.html

虚拟机怎么发送ctrl+alt+delete组合键
https://www.cnblogs.com/yangcx666/p/8723782.html

参考:

教程：超详细从零开始yolov5模型训练
https://blog.csdn.net/qq_45701791/article/details/113992622

目标检测---教你利用yolov5训练自己的目标检测模型
https://blog.csdn.net/didiaopao/article/details/119954291

参考:

请教 如何将 list 转化为 double数组
https://bbs.csdn.net/topics/320049060

List转数组：官方是这样给出的例子
https://blog.csdn.net/qq_41033385/article/details/104311337

参考:

STM32F103 通过SD卡IAP升级程序，带MD5校验，（带源码）可在实际项目中使用
https://blog.csdn.net/qq_15181569/article/details/106852095

文件md5在线计算
http://www.metools.info/other/o21.html

STM32F103通过Ymodem协议更新程序带MD5校验
https://blog.csdn.net/qq_15181569/article/details/115762289

参考:

Java 中初始化 List 的五种方法
https://www.jianshu.com/p/4c8c0e78061d#:~:text=%E5%9C%A8%20Java%20%E4%B8%AD%E5%88%9D%E5%A7%8B%E5%8C%96%20List%20%E7%9A%84%E4%BA%94%E7%A7%8D%E6%96%B9%E6%B3%95%201.%E6%9E%84%E9%80%A0%20List%20%E5%90%8E%E4%BD%BF%E7%94%A8,List.add%20%E5%88%9D%E5%A7%8B%E5%8C%96%202.%E4%BD%BF%E7%94%A8%20%7B%20%7B%7D%7D%20%E5%8F%8C%E6%8B%AC%E5%8F%B7%E8%AF%AD%E6%B3%95%203.%E4%BD%BF%E7%94%A8%20Arrays.asList