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于 2012-5-27 1:22, Xavier Wang 写道:
Maybe you can do this by simply:

local _ENV

after this point, all global access are not allowed.

or the following idiom (looks a little cluttered though):

(function (_ENV)
-- your code here

you may change the actual environment easily by passing it as a parameter.

if Lua has some clearer lambda syntax, this would look better.