数组作为参数列表LUA [英] array as parameter list lua

问题描述

今天，我正在与一些LUA，与oldesh我的语言，并没有找到您能得到的参数为阵，像洙：

Today i was working some with lua,with that "oldesh" for me language,and did find what you can get arguments as array,like soo:

function foo(someting,...)
    local arrayofargs = arg
    -- code here
end

和现在，我intresting.Can认为是其他办法？你可以传递数组，而不是数组，但像参数列表，像这样：

And now,i'm intresting.Can that be in "other way"? Can you pass array,not as array,but like param list,Like so:

function bar(a1,a2)
    print(a1+a1)
end

function foo(someting,...)
    local arrayofargs = arg
    bar(arg)
end

是的，你不能做that.But我可以somehome成才做出这样的？

Yes,you cant do that.But can i somehome make someting like that?

推荐答案

如果你在谈论一个事实，即Lua中的旧版本给了一个自动 ARG 包含所有ARGS由可变参数函数接受，那么你可以做本地ARG = {...} 就在函数的开始。

If you're talking about the fact that old versions of Lua gave an automatic arg containing all args received by a vararg function, then you can just do local arg={...} right at the beginning of the function.

如果你想一个数组转换成列表，使用 table.unpack 。

If you want to convert an array into a list, use table.unpack.

所以，你的例子是

function foo(someting,...)
    local arg={...}
    bar(table.unpack(arg))
end

但是这并没有太大的意义，因为你可以做到这一点，这是更清晰，更简单的：

but this does not make much sense, since you can just do this, which is clearer and simpler:

function foo(someting,...)
    bar(...)
end

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