C# 6.0深度解析：权威指南

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"C# 6.0 in a Nutshell - 中文版" 本书"《C# 6.0 in a Nutshell》"是关于C# 6.0和.NET框架核心组件的权威参考指南，作者为Joseph Albahari和Ben Albahari。此书面向已经对C#有一定了解的开发者，旨在帮助他们深入理解和掌握C#语言的新特性和.NET 4.6框架以及Roslyn编译器的使用。 C#自2000年首次发布以来，经历了显著的发展和扩展，增加了许多新功能，从而使其具有极高的灵活性和广泛的应用场景。尽管C#的功能日益丰富，但这也意味着开发者需要不断学习和探索新的技术。这本书正是为此目的而编写，它包含了C# 6.0中的新特性，如自动属性初始化、null条件运算符、字符串插值、async/await的改进等，并涵盖了.NET框架的核心组件，如内存管理、多线程、网络编程、数据访问和UI设计等。本书的组织方式围绕概念和实际应用案例展开，使得读者能够快速理解并运用这些知识。书中详细介绍了C#的基础语法和变量，到更高级的主题，如泛型、委托、事件、接口、枚举、类和结构、继承与多态性、异常处理、反射、动态编程、LINQ以及并发和异步编程等。此外，还深入探讨了Roslyn编译器如何改变了代码分析和编译的过程，为开发者提供了强大的代码分析和工具生成能力。对于初学者和经验丰富的程序员来说，这是一本非常有价值的资源，能够帮助他们跟上C#和.NET平台的发展步伐。无论是作为日常开发的速查手册，还是进行深入学习的教材，"C# 6.0 in a Nutshell"都是不可或缺的参考书籍。书中的内容丰富，覆盖面广，可以帮助读者提升技能，解决实际开发中遇到的问题。此书获得了业界专家的赞誉，如微软的Scott Guthrie和C# MVP Eric Lippert，他们都认为这本书对于C#编程的学习和实践具有极高的价值。因此，无论你是正在寻找C#语言的深度解析，还是希望了解.NET框架的最新进展，这本书都将提供你需要的答案和指导。

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xiv | Preface

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tance is required (unlike languages such as C++ and Eiffel, C# does not

support multiple inheritance of classes).

Properties, methods, and events

In the pure object-oriented paradigm, all functions are methods (this is the

case in Smalltalk). In C#, methods are only one kind of function member,

which also includes properties and events (there are others, too). Properties

are function members that encapsulate a piece of an object’s state, such as a

button’s color or a label’s text. Events are function members that simplify

acting on object state changes.

While C# is primarily an object-oriented language, it also borrows from the func‐

tional programming

paradigm. Specifically:

Functions can be treated as values

Through the use of delegates, C# allows functions to be passed as values to

and from other functions.

C# supports patterns for purity

Core to functional programming is avoiding the use of variables whose val‐

ues change, in favor of declarative patterns. C# has key features to help with

those patterns, including the ability to write unnamed functions on the fly

that “capture” variables (lambda expressions) and the ability to perform list

or reactive programming via query expressions. C# 6.0 also includes read-

only auto-properties to help with writing immutable (read-only) types.

Type Safety

C# is primarily a type-safe language, meaning that instances of types can interact

only through protocols they define, thereby ensuring each type’s internal consis‐

tency. For instance, C# prevents you from interacting with a string type as though it

were an integer type.

More specifically, C# supports static typing, meaning that the language enforces type

safety at compile time. This is in addition to type safety being enforced at runtime.

Static typing eliminates a large class of errors before a program is even run. It shifts

the burden away from runtime unit tests onto the compiler to verify that all the

types in a program fit together correctly. This makes large programs much easier to

manage, more predictable, and more robust. Furthermore, static typing allows tools

such as IntelliSense in Visual Studio to help you write a program, since it knows for

a given variable what type it is, and hence what methods you can call on that vari‐

able.

C# also allows parts of your code to be dynamically typed via

the dynamic keyword (introduced in C# 4.0). However, C#

remains a predominantly statically typed language.

2 | Chapter 1: Introducing C# and the .NET Framework

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