Lua合并有序数组：从后往前的原地归并

local function mergeNew(a, b)
    local out, i, j = {}, 1, 1
    while i <= #a and j <= #b do
        if a[i] <= b[j] then
            out[#out + 1] = a[i]; i = i + 1
        else
            out[#out + 1] = b[j]; j = j + 1
        end
    end
    while i <= #a do out[#out + 1] = a[i]; i = i + 1 end
    while j <= #b do out[#out + 1] = b[j]; j = j + 1 end
    return out
end

local function mergeInPlace(a, m, b)
    local i, j, k = m, #b, m + #b
    while j >= 1 do
        if i >= 1 and a[i] > b[j] then
            a[k] = a[i]; i = i - 1
        else
            a[k] = b[j]; j = j - 1
        end
        k = k - 1
    end
    return a
end
local p = getplayerbyname("mrg01")
local arr = mergeInPlace({1, 3, 5, 0, 0, 0}, 3, {2, 4, 6})
sendmsg(p, 1, table.concat(arr, ","))