del 只能完整的 key，模糊批量删除的一种方式（比如删除user:打头的）：EVAL "return redis.call('del', unpack(redis.call('keys', ARGV[1])))" 0 'user:*'
user:
EVAL "return redis.call('del', unpack(redis.call('keys', ARGV[1])))" 0 'user:*'
