说明：  该书系统、全面、细致地讲解了C#5.0从基础知识到各种高级特性的命令、语法和用法。同时为每一个知识点都专门设计了贴切、简单、易懂的学习案例，从而可以帮助读者准确地理解知识点的含义并快速地学以致用。
(C# is a general-purpose, type-safe, object-oriented programming language. The goal of the language is programmer productivity. To this end, the language balances simplicity, expressiveness, and performance. The C# language is platform-neutral, but it was written to work well with the Microsoft .NET Framework. C# 5.0 targets .NET Framework 4.5.)