#cn-programmer

Follow to get notified about new posts with this tag

cifer

8y

Graphene 源码阅读 - 交易篇 - 交易费用

Graphene 源码阅读 - 交易篇 - 交易费用

交易费用操作类型不同, 所需费用也不同. 各项操作的费用记录在 global_property_object::chain_parameters::fee_schedule 中. 石墨烯代码将创世信息中的 inital_parameters::current_fees, global_property_object::chain_parameters::fee_schdule, 以及各项操作中的

$ 45.344

18

wpcomments

9y

example title333

example title333

example bodyddd

$ 0.000

0

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

函数式编程思想

函数式编程思想

最近一直在学习函数式编程，函数式编程和面向对象编程都是编程范式的一种。函数式编程解决了一些面向对象解决起来很困难问题，比如并发状态的共享处理，其实函数式不用考虑状态....为了理解什么是函数式编程，我特意买了基本书，也查了一些资料，在这里跟大家分享一下 books 《java8函数式编程》《函数式编程思想》《JavaScript函数式编程》

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

steemit账户注册，亲测可用

steemit账户注册，亲测可用

感谢 @lemooljiang 提供的教程，新号终于注册成功，不能发图实在是太不方便了，而且有些时候一图顶千言，能少写大量的文字，最终还是决定用新号来玩了。但这个号还是会继续分享些自己认为不错的技术文章（仅仅是分享原文的连接作为参考）参考教程 @lemooljiang 传送门>-< 点我

luchyl

2d

Reflections At CS Park.

Reflections At CS Park.

One of the challenges facing business premises around my office location is parking. A lot of the buildings here do not have adequate provision for parking spaces, which makes it difficult for car owners

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

RxJava参考文章

RxJava参考文章

RxJava中backpressure(背压)的概念其实类似与生产者消费模型，backpressure其实解决了生产者生成数据过快带来的问题，细心的人会发现，RxJava2.0中对好多常用的操作符都默认做了backpressure处理，网上的资料也很多，，本人也没这么多时间再次写一遍，所以分享下连接，供将来不时之需，可以省去大量百度，查文档的时间。虽然有些还是停留在1.0，但是思想是一样的，一通百通。

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---装饰模式

设计模式之---装饰模式

java的io流体系的设计就是用的装饰模式，知道这一点再看io流体系会又豁然开朗的感觉！装饰模式（Decorator Pattern）定义 Attach additional responsibilities to an object dy-namically keeping the same interface. Decorators provide a flex-ible alternative

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---适配器模式

设计模式之---适配器模式

适配器模式是android开发中最常用的模式之一，我们在开发显示列表时经常会用到定义适配器模式（Adapter Pattern） Convert the interface of a class into another interface clientsexpect. Adapter lets classes work together that couldn't other-wise because

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---组合模式

设计模式之---组合模式

组合模式定义 Compose objects into tree structures to represent part-whole hierarchies. Composite lets clients treat individual objectsand compositions of objects uniformly.

memess

4d

Berlin election, a European trend toward extreme parties

Berlin election, a European trend toward extreme parties

Hey, it has been a long time since my last post, i might have or might not have "lost my keys" due to a change of setup and found a way to recover them haha. Today subject is Germany, two region

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

初识 Arduino

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---原型模式

设计模式之---原型模式

原型模式（Prototype Pattern）定义 Specify the kinds of objects to create using a prototypicalinstance, and create new objects by copying this prototype. 用原型实例指定创建对象的种类，并且通过拷贝这些原型创建新的对象。类图:

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

android系统源码镜像的使用方法

android系统源码镜像的使用方法

把整个android源码镜像同步下来了，但是问题来了怎么试用这个镜像呢？准备： ubuntu16.04 200g的空间（我记得android5.1时代，整个源码库大概150g左右）步骤如下： 1.建立android源码镜像这一步就不介绍了，自行百度(建议使用国内清华的镜像服务器，天朝防火墙，你懂的！) 2.同步完成后，运行 git daemon --verbose --export-all

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---命令模式

设计模式之---命令模式

命令模式（Command Pattern）定义 Encapsulate arequest as an object, thereby letting you parameterize clientswith different requests, queue or log requests, and support un-doable operations.

jongolson

6d

the Promises

Have you looked around the world lately? It's rough out there. The cost of living has sky rocketed, there's famines, wars, diseases that looking to take us out at every change it gets... It's almost like

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---建造者模式

设计模式之---建造者模式

建造者模式（Builder Pattern）定义 Separate the construction of a complex object from its repre-sentation so that the same construction process can create differ-ent representations.

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---观察者模式

设计模式之---观察者模式

观察者模式定义 Define a one-to-many dependency between objects so thatwhen one object changes state, all its dependents are notifiedand updated automatically. 定义对象间一种一对多的依赖关系，使得每当一个对象改变状态，则所有依赖于它的对象都会得到通知并被自动更新。

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---策略模式

设计模式之---策略模式

策略模式（Strategy Pattern）定义： Define a family of algorithms, encapsulate each one, andmake them interchangeable. 定义一组算法，将每个算法都封装起来，并且使它们之间可以互换。类图：暂时忽略，百度都有。（等我能上传图了，我会补上）从类图可以看出其主要包含三个功能类 Context 上下文类

hiquanta

9y

!Low reputation account with an unverified outbound link, Reveal content

设计模式之---模版方法模式

设计模式之---模版方法模式

模版方法模式定义 Define the skeleton of an algorithm in an operation, defer-ring some steps to subclasses. Template Method lets subclassesredefine certain steps of an algorithm without changing the al-gorithm's

bulliontools

13d

"Why ELIXIR" Writing Contest

"Why ELIXIR" Writing Contest

The ELIXIR project is still relatively new, yet it's quickly growing! To help spread the word about it I'm holding a contest with some fantastic prizes! How to Enter Write a post about the ELIXIR token

hiquanta

9y

Kotlin初体验

Kotlin初体验

开发工具： IntelliJIDEA 第一步：打开idea IDE 选中 kotlin 点击next选项第二步：输入项目的名称及路径后,点击finish按钮 3.创建第一个Kotlin类，名字嘛，随便取吧：可以发现，Kotlin类的后缀名为*.kt 4.编写第一个程序HelloWorld吧点击右键运行就会看到输出结果：如此的简洁，java的所有方法都要依赖于class ，kotlin更符合函数式编程的习惯