Go语言实战指南：从入门到专家

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《Go in Action》是一本深入浅出的Go语言教程，专为开发人员设计，旨在将读者从好奇的新手引导成为Go语言的大师级专家。作者威廉·肯尼迪是一位经验丰富的软件开发者，同时也是博客GoingGo.Net的博主，而本书的其他两位作者——布莱恩·凯特尔森和埃里克·斯·马丁，则是GopherCon的组织者，并共同开发了基于Go的Skynet框架。书中首先介绍了Go的独特特性和概念，帮助读者建立起扎实的基础。通过实际操作，你将在第2章开始学习如何快速上手Go，从编写简单的程序开始。接着，章节3聚焦于包管理和工具链，这是Go项目组织和构建的关键环节。数组、切片和映射（Chapter 4）是数据结构的核心部分，它们在Go中扮演着重要角色，让你能够高效地处理和操作数据。第5章深入探讨Go的类型系统，理解其静态类型和接口的重要性，这对于编写清晰、健壮的代码至关重要。接下来的章节（Chapter 6）专门讲解并发编程，Go语言以其简洁的并发模型闻名，这将使你掌握goroutines和channels等核心概念，实现高效的并行计算。随后，作者们会介绍常见的并发模式，帮助你在实际项目中运用这些技术。标准库（Chapter 8）是Go语言的一大亮点，它包含了丰富的模块和工具，涵盖了网络编程、文件操作、加密等方方面面，让开发者能够快速构建功能完备的应用。此外，测试与基准（Chapter 9）不可或缺，作者会教你如何编写有效的测试用例和进行性能优化。本书还提供了一份免费的PDF、Kindle和ePub格式电子书，购买纸质版即可获得。对于在线购买或获取更多关于Manning出版社其他书籍的信息，访问mannings.com是一个不错的选择。版权方面，所有内容受版权保护，未经许可不得复制或传播。《Go in Action》是一本实用的指南，无论你是初次接触Go的初学者还是寻求提升的进阶者，都将从中获益匪浅，学会如何利用Go语言构建高性能、可维护的现代应用程序。

ACKNOWLEDGMENTS xv

We would also like to recognize Cory Jacobson, Jeffery Lim, Chetan Conikee, and

Nan Xiao, who consistently provided time for reviews, opinions, and guidance.

Thanks to Gabriel Aszalos, Fatih Arslan, Kevin Gillette, and Jason Waldrip for help

with sample code and reviews. And special thanks to Steve Francia for contributing

the foreword and endorsing our work.

We end by sincerely thanking our families and friends. Anything that takes this

level of commitment and time always has an effect on the ones you love.

ILLIAM KENNEDY

I would like to thank Lisa, my beautiful wife, and my five children: Brianna, Melissa,

Amanda, Jarrod, and Thomas. Lisa, I know you and the kids spent way too many days,

nights, and weekends without your husband and father. Thank you for letting me take

all the time I needed to work on the book: I love each and every one of you.

I would also like to thank my business partner Ed Gonzalez, creative director Erick

Zelaya, and the entire team at Ardan Studios. Ed, thanks for supporting me from the

beginning. I could not have done this without you. You are more than just a business

partner, you are a friend and brother: thank you. Erick, thanks for everything you do

to support me and the company. Not sure what we would do without you.

RIAN KETELSEN

I would like to thank my family for their patience during this four-year-long process of

producing a book. Christine, Nathan, Lauren, and Evelyn: thank you for putting up

with me as I wrote chapters in a lounge chair by the pool while you were swimming.

Thank you for believing that this book could and would be published.

RIK ST. MARTIN

I would like to thank my fiancée Abby, and my three children Halie, Wyatt, and Allie

for being so patient and understanding how much time writing a book and organizing

conferences demand. I love you all so very much and am lucky to have you.

I would also like to thank Bill Kennedy for the tremendous effort he has poured

into this book—we asked him to help us write it, and he steered the ship most of the

way due to the demands of our jobs and organizing GopherCon. I also want to thank

the community for all their reviews and words of encouragement.

Licensed to Mark Watson <nordickan@gmail.com>

ABOUT THIS BOOK xvii

 Chapter 2 walks you through a complete Go program, teaching you all that Go

has to offer as a language along the way.

 Chapter 3 introduces the concept of packaging and how to best set up your Go

workspace and development environment. It also shows how to use the Go tool-

ing, including fetching and building your code.

 Chapter 4 provides a detailed view of Go’s built-in data types: arrays, slices,

and maps. It explains the implementation and mechanics behind these data

structures.

 Chapter 5 is a detailed view of Go’s type system, from struct types to named

types to interfaces and type embedding. It also covers how all these things come

together to allow you to structure and write complex software in a simpler way.

 Chapter 6 dives deeply into how the Go scheduler, concurrency, and channels

work. It teaches the mechanics behind this aspect of the language.

 Chapter 7 takes what you learn from chapter 6 and shows more practical code

around concurrency patterns. You will learn how to implement goroutine pools

to manage work and how to pool reusable resources to be shared.

 Chapter 8 explores the standard library and goes deep into three packages:

log

json

, and

. The chapter focuses on some of the intricacies of these three

packages.

 Chapter 9 closes the book by showing how to use the testing and benchmarking

framework. You will learn how to write unit and table tests and benchmarks, and

how to add examples to your documentation and use the examples as tests.

About the code

All source code in the book is presented in a

mono-spaced

typeface

this

, which

sets it off from the surrounding text. In many listings, the code is annotated to point

out key concepts, and numbered bullets are sometimes used in the text to provide

additional information about the code.

Source code for the examples in the book is available for download from the pub-

lisher’s website at www.manning.com/books/go-in-action and from GitHub at https://

github.com/goinaction/code.

Author Online

Purchase of Go in Action includes free access to a private web forum run by Manning

Publications where you can make comments about the book, ask technical questions,

and receive help from the authors and from other users. To access the forum and sub-

scribe to it, point your web browser to www.manning.com/books/go-in-action. This

page provides information on how to get on the forum once you’re registered, what

kind of help is available, and the rules of conduct on the forum.

Licensed to Mark Watson <nordickan@gmail.com>

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