展现C＃

代码说明：

  　C#语言自C/C++演变而来。但是，它现代、简单、完全面向对象和类型安全。如果您是C/C++程序员，学习曲线将会很平坦。许多C#语句直接借用您所喜爱的语言，包括表达式和操作符。假如不仔细看，简直会把它当成C++。(C# language since C/C evolved from. However, its modern, simple, fully object-oriented and type safety. If you are C/C programmers, and the learning curve will be very flat. Many C# statements directly borrow your favorite language, including expression and operator. If not careful, it will be just as C.)