How to troubleshoot the re-render? caused by which attribute of the vue component

there is a page, component A contains component B, component B contains component C. Component A does not pass data like component B and component C, and the properties of component B and component C have changed. Component B and component C are supposed to be re-rendered, but component An inexplicably renders twice more.

The description of

may be a little too simple, so just ask the great gods to tell you how to see the re-render triggered by which attribute the component is triggered by.

Thank you!

Feb.19,2022
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