Redis lua脚本无法正常工作(Redis lua script not working)

 我创建了一个redis lua脚本来执行基于密钥数据类型的命令： - 
 
local keyType = redis.call("TYPE", KEYS[1])
if (keyType == "string")
then
return redis.call("GET",KEYS[1])
else
return nil
end
 
 每次执行它都会返回null。可以帮助纠正脚本。 

I have created a redis lua script to execute a command based on key data type :-
 
local keyType = redis.call("TYPE", KEYS[1])
if (keyType == "string")
then
return redis.call("GET",KEYS[1])
else
return nil
end
 
It is returning null every time I am executing it.Can any please help in correcting the script.

原文：https://stackoverflow.com/questions/35315176