https://cloud.tencent.com/developer/article/1498520
https://zhuanlan.zhihu.com/p/30796518
https://www.cnblogs.com/eastonliu/p/9145231.html
https://www.cnblogs.com/ppzhang/category/1379961.html【mongoDB】
https://www.cnblogs.com/mingerlcm/p/10699553.html 【三星】