Lua功能范围

Question

如果我喜欢这个,我会收到错误.我该怎么办？

local function one()
    local function two()
        local function three()
            callMe() -- got error here
        end
    end
end

local function callMe()
    print ("can't call :(")
end

callMe()

Answer 1

必须在使用之前声明本地人:

local callMe
local function one()
    local function two()
        local function three()
            callMe() -- got error here
        end
    end
end
function callMe()
    print ("can't call :(")
end
callMe()