C# Precisely, 2/e (Paperback)

C# is an object-oriented programming language that is similar to Java in many respects but more comprehensive and different in most details. This book offers a quick and accessible reference for anyone who wants to know C# in more detail than that provided by a standard textbook. It will be particularly useful for C# learners who are familiar with Java. This second edition has been updated and expanded, reflecting the evolution and extension of the C# programming language. It covers C# versions 3.0 and 4.0 and takes a look ahead at some of the innovations of version 5.0. In particular, it describes asynchronous programming as found in 5.0.

Despite the new material, C# Precisely remains compact and easy to navigate. It describes C# in detail but informally and concisely, presenting lambda expressions, extension methods, anonymous object expressions, object initializers, collection initializers, local variable type inference, type dynamic, type parameter covariance and contravariance, and Linq (language integrated query), among other topics, all in aabout 250 pages. The book offers more than 250 examples to illustrate both common use and subtle points. Two-page spreads show general rules on the left and relevant examples on the right, maximizing the amount of information accessible at a glance.

The complete, ready-to-run example programs are available at the book's Web site, http://www.itu.dk/people/sestoft/csharpprecisely/

C#是一種物件導向的程式語言，與Java在許多方面相似，但在大部分細節上更全面且不同。本書提供了一個快速且易於理解的參考，適用於希望深入了解C#的人，超越標準教科書所提供的內容。對於熟悉Java的C#學習者尤其有用。本書的第二版已經更新和擴充，反映了C#程式語言的演進和擴展。它涵蓋了C#的3.0和4.0版本，並預覽了5.0版本的一些創新。特別是，它描述了在5.0版本中發現的非同步編程。

儘管有新的內容，《C#精確地》仍然簡潔且易於尋找。它以詳細但非正式和簡潔的方式描述C#，介紹了lambda表達式、擴展方法、匿名物件表達式、物件初始化器、集合初始化器、局部變數類型推斷、動態類型、類型參數協變和逆變，以及Linq（語言集成查詢）等主題，全部在約250頁的範圍內。本書提供了超過250個例子，既展示了常見用法，也解釋了一些細微的要點。雙頁展示了左側的一般規則和右側的相關例子，最大限度地提供了一目了然的信息。

完整的可直接運行的範例程式可在本書的網站上找到，網址為http://www.itu.dk/people/sestoft/csharpprecisely/。