The teacher’s infinite classification is a bit difficult and hard to understand
Infinitus classification is mainly reflected in the infinite subordinates
You can refer to the mysql table structure to see that each piece of data has a pid (specifically pointing to the parent id)
You can pass the pid in the table Basically realize unlimited classification
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Infinitus classification is mainly reflected in the infinite subordinates
You can refer to the mysql table structure to see that each piece of data has a pid (specifically pointing to the parent id)
You can pass the pid in the table Basically realize unlimited classification