A Piece of Sunshine

檐下窗欞斜映枝椏與你席地對座飲茶

Summaries of Regular Expression / 正则表达式总结

Regular Expression Basic Syntax Description abc… Letters 123… Digits ...

Posted by Pengyu on June 19, 2016

Internet Protocol - SMTP and POP3 / 网络协议系列 - SMTP和POP3协议

1 SMTP协议 SMTP（Simple Mail Transfer Protocol），即简单邮件传送协议。同HTTP等多数应用层协议一样，它工作在C/S模式下，用来实现因特网上的邮件传送。 SMTP是用来将客户机上的邮件传送到服务器上。这里的客户机是指某次连接中的发送方，服务器是指相应...

Posted by Pengyu on June 13, 2016

Algorithm(２)-Dynamic Programming / 算法(2)-动态规划

**------English (英文)------** Problem 1. Minimum Coin Change Given a amount A and n coins, v1<v2<v3<...<vn. Write a program to find o...

Posted by Pengyu on May 9, 2016

Notes from JavaScript:The Definitive Guide / JavaScript权威指南笔记

Part I. Core JavaScript Ch 2. Lexical Structure The return, break, and continue statements often stand alone, but they are sometimes followed ...

Posted by Pengyu on May 4, 2016

Notes from Expert C Programming / C专家编程笔记

Chapter 1: C Through the Mists of Time Notes Avoid unnecessary complexity by minimizing your use of unsigned types; use a signed type like int...

Posted by Pengyu on May 2, 2016

Notes from C Primer Plus / C Primer Plus笔记

Coming Soon….

Posted by Pengyu on April 27, 2016

Notes from C Traps and Pitfalls / C陷阱与缺陷笔记

Chapter 1: Lexical Pitfalls (词法陷阱) Notes A character enclosed in single quotes is just another way of writing the integer that corresponds to ...

Posted by Pengyu on April 27, 2016

Example of iOS VoIP Notification / iOS VoIP Notification实例

这篇文章翻译整理自Pierre-Marc Airoldi的iOS 8 VoIP Notifications和M Penades关于PushKit实现的回答，加入了我自己的文件设定，以及代码的更新，以方便读者更简单便捷的实现PushKit的学习。在iOS8中，苹果引进了一种可以用在VoIP应...

Posted by Pengyu on April 20, 2016