lua的函数

1.一个示例实现列表的元素的求和

[root@]# more funcAdd.lua 
function add(a)
  local sum = 0
    for i = 1,#a do
       sum = sum + a[i]
    end
    return sum
end

a = {1,2,3,4,5,6}

local sum = add(a)

print(sum)