Index of /releases → http://download.redis.io/releases/
make命令 → https://www.baidu.com/s?wd=make%E5%91%BD%E4%BB%A4(百度搜索)
Make 命令教程 → http://www.ruanyifeng.com/blog/2015/02/make.html(阮一峰的网络日志)
nil → https://www.baidu.com/s?wd=nil(百度搜索)
Nil 和 Null 的区别? → https://zhidao.baidu.com/question/1368396052078151579.html(百度知道)
Redis SET 命令 → https://www.runoob.com/redis/strings-set.html(菜鸟教程)
Redis Get 命令 → https://www.runoob.com/redis/strings-get.html(菜鸟教程)
Redis 字符串(String) → https://www.runoob.com/redis/redis-strings.html(菜鸟教程)
Redis Lpush 命令 → https://www.runoob.com/redis/lists-lpush.html(菜鸟教程)
Redis Zrange 命令 → https://www.runoob.com/redis/sorted-sets-zrange.html(菜鸟教程)