Lua功能范围 [英] Lua function range

问题描述

如果我这样做，我会出错.我该怎么办?

I got error if I do like this. What should I do?

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()

推荐答案

使用之前必须声明本地:

locals have to be declared before used:

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()

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