The Go Programming Language 平装
- The first chapter is a tutorial on the basic concepts of Go, introduced through programs for file I/O and text processing, simple graphics, and web clients and servers.
- Early chapters cover the structural elements of Go programs: syntax, control flow, data types, and the organization of a program into packages, files, and functions. The examples illustrate many packages from the standard library and show how to create new ones of your own. Later chapters explain the package mechanism in more detail, and how to build, test, and maintain projects using the go tool.
- The chapters on methods and interfaces introduce Go’s unconventional approach to object-oriented programming, in which methods can be declared on any type and interfaces are implicitly satisfied. They explain the key principles of encapsulation, composition, and substitutability using realistic examples.
- Two chapters on concurrency present in-depth approaches to this increasingly important topic. The first, which covers the basic mechanisms of goroutines and channels, illustrates the style known as communicating sequential processes for which Go is renowned. The second covers more traditional aspects of concurrency with shared variables. These chapters provide a solid foundation for programmers encountering concurrency for the first time.
- The final two chapters explore lower-level features of Go. One covers the art of metaprogramming using reflection. The other shows how to use the unsafe package to step outside the type system for special situations, and how to use the cgo tool to create Go bindings for C libraries.
The book features hundreds of interesting and practical examples of well-written Go code that cover the whole language, its most important packages, and a wide range of applications. Each chapter has exercises to test your understanding and explore extensions and alternatives. Source code is freely available for download from http://gopl.io/ and may be conveniently fetched, built, and installed using the go get command.
Alan A. A. Donovan is a member of Google’s Go team in New York. He holds computer science degrees from Cambridge and MIT and has been programming in industry since 1996. Since 2005, he has worked at Google on infrastructure projects and was the co-designer of its proprietary build system, Blaze. He has built many libraries and tools for static analysis of Go programs, including oracle, godoc -analysis, eg, and gorename.
Brian W. Kernighan is a professor in the Computer Science Department at Princeton University. He was a member of technical staff in the Computing Science Research Center at Bell Labs from 1969 until 2000, where he worked on languages and tools for Unix. He is the co-author of several books, including The C Programming Language, Second Edition (Prentice Hall, 1988), and The Practice of Programming (Addison-Wesley, 1999).
Chapter 1: Tutorial 1
1.1 Hello, World 1
1.2 Command-Line Arguments 4
1.3 Finding Duplicate Lines 8
1.4 Animated GIFs 13
1.5 Fetching a URL 15
1.6 Fetching URLs Concurrently 17
1.7 A Web Server 19
1.8 Loose Ends 23
Chapter 2: Program Structure 27
2.1 Names 27
2.2 Declarations 28
2.3 Variables 30
2.4 Assignments 36
2.5 Type Declarations 39
2.6 Packages and Files 41
2.7 Scope 45
Chapter 3: Basic Data Types 51
3.1 Integers 51
3.2 Floating-Point Numbers 56
3.3 Complex Numbers 61
3.4 Booleans 63
3.5 Strings 64
3.6 Constants 75
Chapter 4: Composite Types 81
4.1 Arrays 81
4.2 Slices 84
4.3 Maps 93
4.4 Structs 99
4.5 JSON 107
4.6 Text and HTML Templates 113
Chapter 5: Functions 119
5.1 Function Declarations 119
5.2 Recursion 121
5.3 Multiple Return Values 124
5.4 Errors 127
5.5 Function Values 132
5.6 Anonymous Functions 135
5.7 Variadic Functions 142
5.8 Deferred Function Calls 143
5.9 Panic 148
5.10 Recover 151
Chapter 6:. Methods 155
6.1 Method Declarations 155
6.2 Methods with a Pointer Receiver 158
6.3 Composing Types by Struct Embedding 161
6.4 Method Values and Expressions 164
6.5 Example: Bit Vector Type 165
6.6 Encapsulation 168
Chapter 7: Interfaces 171
7.1 Interfaces as Contracts 171
7.2 Interface Types 174
7.3 Interface Satisfaction 175
7.4 Parsing Flags with flag.Value 179
7.5 Interface Values 181
7.6 Sorting with sort.Interface 186
7.7 The http.Handler Interface 191
7.8 The error Interface 196
7.9 Example: Expression Evaluator 197
7.10 Type Assertions 205
7.11 Discriminating Errors with Type Assertions 206
7.12 Querying Behaviors with Interface Type Assertions 208
7.13 Type Switches 210
7.14 Example: Token-Based XML Decoding 213
7.15 A Few Words of Advice 216
Chapter 8: Goroutines and Channels 217
8.1 Goroutines 217
8.2 Example: Concurrent Clock Server 219
8.3 Example: Concu rent Echo Server 222
8.4 Channels 225
8.5 Looping in Parallel 234
8.6 Example: Concurrent Web Crawler 239
8.7 Multiplexing with select 244
8.8 Example: Concurrent Directory Traversal 247
8.9 Cancellation 251
8.10 Example: Chat Server 253
Chapter 9: Concurrency with Shared Variables 257
9.1 Race Conditions 257
9.2 Mutual Exclusion: sync.Mutex 262
9.3 Read/Write Mutexes: sync.RWMutex 266
9.4 Memory Synchronization 267
9.5 Lazy Initialization: sync.Once 268
9.6 The Race Detector 271
9.7 Example: Concurrent Non-Blocking Cache 272
9.8 Goroutines and Threads 280
Chapter 10: Packages and the Go Tool 283
10.1 Introduction 283
10.2 Import Paths 284
10.3 The Package Declaration 285
10.4 Import Declarations 285
10.5 Blank Imports 286
10.6 Packages and Naming 289
10.7 The Go Tool 290
Chapter 11: Testing 301
11.1 The go test Tool 302
11.2 Test Functions 302
11.3 Coverage 318
11.4 Benchmark Functions 321
11.5 Profiling 323
11.6 Example Functions 326
Chapter 12: Reflection 329
12.1 Why Reflection? 329
12.2 reflect.Type and reflect.Value 330
12.3 Display, a Recursive Value Printer 333
12.4 Example: Encoding S-Expressions 338
12.5 Setting Variables with reflect.Value 341
12.6 Example: Decoding S-Expressions 344
12.7 Accessing Struct Field Tags 348
12.8 Displaying the Methods of a Type 351
12.9 A Word of Caution 352
Chapter 13: Low-Level Programming 353
13.1 unsafe.Sizeof, Alignof, and Offsetof 354
13.2 unsafe.Pointer 356
13.3 Example: Deep Equivalence 358
13.4 Calling C Code with cgo 361
13.5 Another Word of Caution 366
- ASIN : 0134190440
- 语言 : 英语
- ISBN : 9780134190440
- 品牌 : Addison-Wesley Professional
- 尺寸 : 23.11 x 18.54 x 2.54 cm
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Case in point: Go builds statically-bound executables. No more runtime dependency woes from mis-matched DLL / .so versions.
Another example: a radically different approach to polymorphism and encapsulation leading to an easier and cleaner object model than any other.
The more I learn about Go, the more I am convinced that it will eventually overtake C/C++ as the defacto standard for system level development - and may even challenge Java and the dynamic languages for business-critical applications.
I own both the print and kindle editions of this book.
The book itself is great but I am very disappointed in the Kindle edition.
This is the first time that I have attempted to read a text book on a Kindle and I found that navigation within the book was extremely cumbersome. To add insult to injury all of the online code examples are line wrapped because of the Kindle formatting and there are links to out of line versions that are correctly formatted (but in a horrible font). Honestly, is that the best that Kindle can do?
I would have been better off with a PDF file of the book.
However with the advent of Golang 1.18 and Generics the book seriously requires urgent revision to include this important addition not too mention the module support added in 1.11 & 1.12 ...
This preeminent book really needs to track the evolution of the language faster ....
But not just that: it also helps get people into better coding habits.
Golang is a language based on best practices, and I feel I not only learned a new language this past Summer, but I also learned more about being a good programmer in general.
I would definitely consider using this language in bigger projects in the future, and I have already adopted several practices they listed across other languages I use.
The only things I am not a fan of with this language are the ways it implements public vs private data members and interfaces. I feel the variable name casing should not determine public or private members, because it is less explicit. I also did try a few things out, after reading, and I came across some nasty bugs that were not the easiest to track, due to the implicit interface implementation -- things would go from implementing part of my interface and not another to getting changed and implementing them in reverse, even with only the parts in question being changed; I would much rather say "implements x, y, z", and the compiler would know EXACTLY what I'm trying to do.
I especially appreciated the way this book was organized: the very first chapter starts with several illustrative examples before even introducing the language itself. Then the next several chapters cover all of the basic & advanced features of the language. The final few chapters cover some of the other concerns of modern professional programmers beyond just the language itself: the build environment, packaging, testing, etc.
If you want to learn the Go programming language, or if you already know how to program in Go but want to improve your understanding of the language, then this is the first & only book you'll need.