https://www.csdndocs.com/focus/show/2424863/1

Linux报错ping: https://www.baidu.com: Name or service not known

MySQL NULL 值处理（转自https://www.w3cschool.cn/mysql/mysql-null.html）

PAT-A-https://www.patest.cn/contests/pat-a-practise/1029

洛谷 P3378 【模板】堆（https://www.luogu.org/problem/show?pid=3378）

洛谷 P3383 【模板】线性筛素数（https://www.luogu.org/problem/show?pid=3383）

https://www.powerpbx.org/content/fusionpbx-v4-freeswitch-v16-centos-v7-install-guide-v1.1

https://www.toutiao.com/a6457425756212429325/?tt_from=mobile_qq&utm_campaign=client_share&app=news_a

Apache 2.4 将域名指向www及默认跳转https的方法

使用HTTP协议访问网络 原网址https://www.2cto.com/kf/201701/552932.html

留作笔记，原文链接：https://www.2cto.com/kf/201607/529682.html

SQLServer2008如何copydatabase--https://www.2cto.com/database/201411/351603.html

[Windows-Mac-Linux 全平台客户端](https---www.zybuluo.com-cmd-)

同步阻塞，同步非阻塞，异步阻塞，异步非阻塞 https://www.zhihu.com/question/19732473

转载logback简要用法 原文地址https://www.cnblogs.com/warking/p/5710303.html

ServletConfig获取配置信息、ServletContext的应用https://www.cnblogs.com/smyhvae/p/4140877.html

MySQL中interactive_timeout和wait_timeout的区别（https://www.cnblogs.com/ivictor/p/5979731.html）

JSON技术的调研报告（https://www.cnblogs.com/kunpengit/p/4001680.html）

redis学习命令大全（转载https://www.cnblogs.com/woshimrf/p/5198361.html）

https://www.cnblogs.com/wt645631686/p/6867651.html?utm_source=itdadao&utm_medium=referral

https://www.cnblogs.com/sylz/p/6858544.html?utm_source=itdadao&utm_medium=referral

https://www.cnblogs.com/dolphin0520/archive/2011/09/17/2179466.html

python随机数用法 转载自https://www.cnblogs.com/skyEva/p/6097157.html

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