Haskell是一种程序语言。特别的，它是多态类型，懒惰的，纯的函数式语言，与大多数其它编程语言不同。 该语言被命名为Haskell Brooks Curry。它是以数学逻辑为基础的函数式语言，基于lambda演算。

为什么使用Haskell？

写一个能工作的大型的软件系统是很困难的而且很昂贵的。维护这个系统甚至更加困难和昂贵。函数式程序语言，例如Haskell，能够使之变得简单而且廉价。

附件为Haskell编译器源代码-Haskell is a programming language. In particular, it is polymorphic type, lazy, pure functional languages, and most other programming language is different. The language was named Haskell Brooks Curry. It is based on mathematical logic-based language function, based on the lambda calculus. Why use Haskell? One can write the large software systems is very difficult and very expensive. Maintaining the system even more difficult and expensive. Functional programming languages, such as Haskell, to make it simple and cheap. Haskell annex to the compiler source code