local key1 = KEYS[1]
local key2 = KEYS[2]


--返回的变量
local result = {}

local times = redis.call("get",key2)
local key1Value = redis.call("get",key1)

if not key1Value then
return
else

local is_exists = redis.call('EXISTS', KEYS[2]);

if(is_exists == 1) then
redis.call('EXPIRE',key1,times);
redis.call('EXPIRE',key2,times);
end

local result = {}
result[1] = key1Value
result[2] = times
return result

end