system design

　　how to design twitter

https://www.youtube.com/watch?v=KmAyPUv9gOY

    how to design wechat

https://www.youtube.com/watch?v=5m0L0k8ZtEs

posted @ 2020-05-18 04:58  anyu686  阅读(165)  评论(0)  编辑  收藏  举报