1. I abstracted the problems I encountered, as shown in the figure
components as a tree.
I have an input box on the root component. I now want to push the contents of the input box to the list of component 3 when pressing enter, and the counter num PP; of component 2 asks how to do this.
that is to say, how to design components and the relationship between components is more elegant
vuex learn about
vuex should be able to solve your problem
vuex is the solution to the problem of multi-component state sharing
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