WeChat Mini Programs, how to modify the data of properties

after modifying the data in this by direct assignment, it is found that there is no Synchronize display on the page.

Can the data of

properties be modified? How should I modify it?


as far as I understand it, isn't this the communication between parent and child components?

A more normal method is a child component triggerEvent a parent component bind:xx and then a parent component setData


setData
official document-setData

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