在LUA中计算2D数组(表)的总和 [英] Calculating Sum of 2D Array(Table) in LUA

问题描述

我只是想知道如何在lua中计算2D数组或表中的组件之和.我尝试搜索，但似乎没有任何清晰或简单的方法.

I was just wondering how to calculate the sum of the components within a 2D array or table in lua. I've tried searching but there doesn't seem to be any clear or simple way of doing it.

我有一个5x5矩阵，该矩阵具有随机生成的单元格，我想知道在给定时间的这些值的总和.

I have a 5x5 Matrix that have randomly generated cells and i was looking to know the sum of these values at a given time.

lua中是否内置任何东西，例如sum(matrix)或sumof(matrix [] []).

Is there anything built into lua such as sum(matrix) or sumof(matrix[][]).

预先感谢

推荐答案

lua 中内置了任何东西，例如 sum(matrix) 或 sumof(matrix[][]).

there anything built into lua such as sum(matrix) or sumof(matrix[][]).

不.只需遍历元素并添加:

No. Just iterate through the elements and add:

local sum = 0
for ir,row in pairs(matrix) do
  for ic,col in pairs(row) do
    sum = sum + col
  end
end

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