How to assemble a ORM

talk is cheap, show me the code

• best way to learn something is through teach others
• best way to understand something very well is to make one by yourself

how many steps will it take to put an elephant into refrigerator

1. open the link
2. do the operation
3. close the link

https://segmentfault.com/a/1190000021693989

1. base on this article
2. assemble sql
3. use reflect to deal the result