说明：  曾经想调整一个或两个值，而无需编译一遍整个代码段？然后，也许一个嵌入式脚本是你的答案。这是Lua中派上用场。 Lua是一个嵌入式的脚本解释器是轻量级的，快速的。 lua的网站上，您可以了解更多。
(Ever wanted to tweak a value or two without having to compile the whole code section over again? Then maybe an embedded script is your answer. This is where Lua comes in handy. Lua is an embeddable script interpreter that is lightweight and fast. You can learn more on the Lua site.)