F#编程基础：专家之声

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"本书《FoundationsofF#》是关于F#编程语言的深入介绍，由Robert Pickering撰写，Don Syme作序。F#是一种功能强大的编程语言，它结合了面向对象、函数式和组件式编程范式，适用于.NET Framework。这本书旨在帮助读者理解和掌握F#的基础知识和高级特性。在本书中，读者可以学习到： 1. **F#基础**：包括F#的基本语法、变量、表达式和控制流结构，如条件语句、循环和异常处理。F#的强类型系统以及类型推断机制也是学习的重点。 2. **函数式编程**：F#深受函数式编程影响，书中会详细介绍函数、高阶函数、递归和模式匹配等概念，以及如何利用这些特性编写简洁且可维护的代码。 3. **面向对象编程**：虽然F#更倾向于函数式编程，但作为.NET的一部分，它也支持面向对象编程。读者将学习如何定义类、接口和模块，以及如何使用继承和多态性。 4. **组合式编程**：F#中的类型系统和模块化设计鼓励使用组件进行编程。书中有讲解如何创建和使用库，以及如何通过组装简单组件构建复杂系统。 5. **数据结构与算法**：F#提供了丰富的内置数据结构，如列表、数组和序列，以及高效的操作算法。书中会有相关章节探讨这些数据结构及其在实际问题中的应用。 6. **异步编程**：F#对异步工作流的支持使得处理I/O密集型任务变得简单。读者将学习如何编写非阻塞的异步代码，提高程序的并发性和性能。 7. **F#交互式环境**：F# Interactive（FSI）是F#的一个重要工具，它允许开发者即时测试和调试代码。书中会介绍如何有效地使用FSI来探索和验证代码。 8. **单元测试与持续集成**：为了确保代码质量，书中会讲解如何使用F#的测试框架编写单元测试，并与持续集成工具配合使用。 9. **F#与其他.NET语言的交互**：由于F#是.NET的一部分，它能够无缝地与C#、VB.NET等其他.NET语言协作。书中会讨论如何在多语言项目中使用F#。 10. **案例研究**：通过实际的案例，如数据分析、Web开发和游戏编程，作者展示了F#在不同领域中的应用和优势。 11. **高级主题**：对于进阶读者，书中还涵盖了如类型提供者、计算表达式、代理（代理）等高级特性，帮助读者深入理解F#的全貌。《FoundationsofF#》是一本全面的F#编程指南，适合对函数式编程感兴趣，或者想要在.NET平台上探索新编程范式的开发者阅读。"

About the Author

ROBERT PICKERING was born in Sheffield, in the north of England,

but a fascination with computers and the “madchester” indie music

scene led him to cross the Pennines and study computer science at the

University of Manchester.

After finishing his degree, he moved to London to catch the tail end

of the dot-com boom working at marchFirst; then he moved to Avanade

to do some more serious work. At Avanade, he specialized in creating

enterprise applications using the .NET Framework, and he got the

chance to workon projects in Denmark, Holland, and Belgium; he

finally settled in Paris, France, where he lives now with his wife and

their two cats. He has been writing about F# almost since it began, and the F# wiki on his

http://www.strangelights.comweb site is among the most popular F# web sites.

He currently works for LexiFi, which is an innovative ISV that specializes in software for

analyzing and processing complex financial derivatives—products such as swaps and options.

LexiFihas pioneered the use of functional programming in finance in order to develop a rigor-

ous formalism for representing financial instruments.

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Acknowledgments

fthere is one person I feel I should be acknowledging, it is Jim Huddleston, the book’ s editor.

Jim was there from the book’s beginning. He helped me get it commissioned, he aided me in

working out the contents, he gave me much encouragement and constructive criticism, and

he showed great skill as an editor. Sadly, Jim died on February 25, 2007, just as the book was

entering its final stages of production. Even though I never met Jim in person, never even

talked to him on the telephone, I feel a real sense of loss knowing he is gone. My thoughts are

with his family at this very sad time, and I’m very disappointed that I never got to meet him in

person and that he never saw the finished book.

Sadly, Jim’s was not the only death that coincided with the closing stages of writing this

book. On March 28, 2007, my uncle Gordon lost his battle with cancer. He was a great lover of

life, with many interests. He was a maths teacher who was an avid

New Scientistreader with a

deep interest in maths and science and a passion for music; he was a talented musician who

played many gigs across Orkney and the north of Scotland. He will be greatly missed by me

and all my family.

Ifeel very lucky to have worked on the project with my technical reviewer, Don Syme,

who went above and beyond the cause by contributing many ideas to the book, helping

improve the implementations of many of the samples, and giving me much encouragement.

I’d also like to thank all the Apress staff who took part in creating this book, especially

Elizabeth Seymour, Kim Wimpsett, and Laura Cheu.

I’d also like to thank Don in another capacity, as the creator and developer of F#, along

with James Margetson and all the others at Microsoft Research, Cambridge, who worked on

F#. Specifically, I’d like to thank them for their hard work on the compiler, and I’d like to let

them know that their quick response times to bugs and queries have been very much

appreciated. I’d also like to thank all the F# community, in particular Christopher J. Barwick

(a.k.a. optionsScalper), who did so much to boost the F# community when he created the

hubFS (

http://cs.hubfs.net).

I’d like to thank all the people who had to put up with me while I wrote this book. My

family: Mum, Dad, and Sister had to put up with me sneaking off to write whenever I went to

visit them. Also, my work colleagues often suffered grumpy mornings after late nights of F#

hacking and writing: Arnaud, Aurélie, Baptiste, Buuloc, Daniel, Dennis, Emmanuel, Fabrice,

François, Frederik, Guillaume, Ibrahima, Jean-Marc, Laurent, Lionel, Oussama, Patrice,

Philippe, Regis, Sebastien J., Sebastien P ., Stefaan, Stefany, and Stephane—I thank you all. Last

but by no means least, I’d like to thank my wife, Susan, for all the help and support she has

given; without her understanding, this book could never have happened.

xix

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