jwhash->kv_file->redis->lua table
oh, i got it
lua裏面的hash實現
https://blog.csdn.net/fwb330198372/article/details/88579361
https://manistein.github.io/blog/post/program/let-us-build-a-lua-interpreter/%E6%9E%84%E5%BB%BAlua%E8%A7%A3%E9%87%8A%E5%99%A8part4/