lua5.2.1最新源码（2012-06-08）。它是一个扩展式程序设计语言，被设计成支持通用的过程式编程，并有相关数据描述的设施。 Lua 也能对面向对象编程，函数式编程，数据驱动式编程提供很好的支持。它可以作为一个强大、轻量的脚本语言，供任何需要的程序使用。 Lua 以一个用 clean C 写成的库形式提供。（所谓 Clean C ，指的 ANSI C 和 C++ 中共通的一个子集） 作为一个扩展式语言，Lua 没有 "main" 程序的概念：它只能 嵌入 一个宿主程序中工作，这个宿主程序被称作 embedding program 或简称为 host 。宿主程序可以通过调用函数执行一小段 Lua 代码，可以读写 Lua 变量，可以注入 C 函数让 Lua 代码调用。这些扩展的 C 函数，可以大大的扩展了 Lua 可以处理事务的领域，这样就可以订制出各种语言，而它们共享一个统一的句法格式的框架。 Lua 的官方发布版就包含了一个叫做 lua 的简单的宿主程序，它用 Lua 库提供了一个保证独立的 Lua 解释器。 Lua 是一个自由软件，它的使用许可决定了对它的使用过程一般没有任何保证。-lua5.2.1 latest source (2012-06-08). It is an extended-style programming language, is designed to support general procedural programming, and related data descr iption facilities. Lua is also object-oriented programming, functional programming, data-driven programming to provide good support. It can serve as a powerful, lightweight scr ipting language for any program that needs to use. Lua written in a clean C library in the form provided. (The so-called the Clean C, ANSI C and C refers to the Chinese Communists through a sub-set) as an extension language, Lua no concept of the "main" program: it can only be embedded in a host program, the host program is called embedding program referred to as the host. The host program can be executed by calling the function with a short Lua code, can read and write Lua variables, can be injected into a C function to Lua code calls. These extensions of the C function, you can greatly extend Lua can handle the affairs of the field, so that you can subsc