The value passed by the vue parent component to the child component, the child component can only receive I?

the value passed by the parent component to the child component. This value has changed in the parent component, but the value of the prop in the child component is the value passed by the parent component for the first time.
has anyone encountered this problem?

Mar.11,2021

you can update the component values by listening to the values defined in the props. The values in the listening component update the values bound by the component
. The demo of the secondary package component is slightly written. Please refer to

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perfect solution, like

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