Data a content 1,2,3 b content 4,5,6
Accurately match field a and get b content
can display 4 5 6
also Can randomly display any one of 4 5 6
Novices don’t understand, please give me advice!
Why do you want to accurately match field a, but get the content of b? Are these two data related? Is it to query the content of a in b?
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Why do you want to accurately match field a, but get the content of b? Are these two data related? Is it to query the content of a in b?