在Lua中对数组排序

Hi i am quite new to lua and i need to sort an Array in Lua.

你好，我对lua很陌生，我需要对lua中的数组进行排序。

So i have following code

我有下面的代码

local distances = {2,3,1}
table.sort(distances)

now i get

现在我得到

• distances[1] -> 1
• 距离[1]- > 1
• distances[2] -> 2
• 距离[2]- > 2
• distances[3] -> 3
• 距离[3]- > 3

now i need to save some information for my "distances" aswell something like the following

现在我需要为我的“距离”保存一些信息，如下所示

local distances = {{C1,2},{C2,3},{C3,1}}

now it is impossible to call the sort-function, but i need them sorted. Is it possible to reach this?

现在不可能调用sort函数，但我需要对它们排序。有可能达到这个目标吗?

• distances[1] -> {C3,1}
• 距离[1]- > { C3 1 }
• distances[2] -> {C2,2}
• 距离[2]- > { C2,2 }
• distances[3] -> {C1,3}
• 距离[3]- > { C1,3 }

Thanks guys :)

谢谢大家:)

1 个解决方案

#1

table.sort takes a comparison function as its second argument.

表。排序的第二个参数是比较函数。

table.sort(distances, function (left, right)
    return left[2] < right[2]
end)