A Piece of Sunshine

檐下窗欞斜映枝椏與你席地對座飲茶

Note on Mastering Bitcoin

一些小知识地址：以1开头的一串字符或数字组成的比特币地址。比特币总数：2100万。 1比特片=1,000毫比特币=100,000,000聪比特币。一般来说，一个区块获得六次以上证明时就被认为时不可撤销的，因为要撤销和重建六个区块需要巨量的计算。比特币使用的是椭圆曲线乘法作为其...

Posted by Pengyu on February 5, 2018

Introduction to Python / Python入门

This post is my study note when learning Python programming based on online tutorial provided by University of Waterloo. 0 Hello World print(“...

Posted by Pengyu on November 30, 2017

Write Android Component for React Native / 编写React Native自定义Android组件

之前写过一篇如何在React Native下用Objective-C编写iOS组件的博文，本篇文章简单介绍一下如何编写Android的React Native组件。本篇以React Native官方文档Native Modules为基础，从零开始介绍如果编写基于React Native的A...

Posted by Pengyu on November 1, 2017

Update your Cordova-Android apk From CrossWalk to Non-CorssWalk / 升级从拥有Crosswalk的Cordova-Android的apk到没有Crosswalk的apk的解决办法

In our previous app development, we were using Cordova + Crosswalk for a better webView. As of February 2017, Crosswalk is not being developed anym...

Posted by Pengyu on October 30, 2017

What You Need To Do For Your House Before Winter / 房屋入冬前注意事项及保养

文章转自 Zheng Lu’s Blog 1. 检查前后院的水管开关一般的房子都有两条水管通到外面，车库和后院各一处。为了防止水管内的存水结冰后冻裂水管，要将地下室里面的开关拧紧，然后将外面的开关拧开，保证水管里的水都放掉，再把它拧上，或者干脆一直开着外面一侧的开关。浇水用的管子...

Posted by Pengyu on September 27, 2017

Write Objective-C Component for React Native / 编写React Native自定义组件 Objective-C for iOS

最近公司项目准备往React Native上转移，简单学习了一下，个人对React Native的强大感到佩服。众所周知，React Native是一个极其优秀的移动开发框架，让开发者们使用JavaScript和ReactJS就能开发出优秀的APP。和PhoneGap／Cordova类似...

Posted by Pengyu on February 6, 2017

Advanced Data Structure / 高级数据结构

1 - Circular Buffer / 环形缓冲区 Circular Buffer 又叫做 Ring Buffer，这里用C语言数组实现一个简单的环形缓冲区。 #include<stdio.h> #include<ctype.h> #define NMAX ...

Posted by Pengyu on January 4, 2017

Notes from Tcl and the Tk Toolkit / Tcl/Tk入门经典

Part I. Tcl语言 Ch1 概述进入Tcl：tclsh 算数运算：expr 表达式退出Tcl：exit 创立图形界面：wish 使用wish的hello world程序： button .b -text "Hello, World!" -command exit gr...

Posted by Pengyu on December 12, 2016