How does Vue transfer the data from the parent component to the child component intact?

Now there is A、B、C Three components , Nesting with each other , Form father and son and grandchildren .
Now I want to put A The data transmitted by the component is transmitted to C, How to do ？
（ Don't want to use props The reason is that A I didn't write the component , I can't control ）

// A.vue
<div>
   <b  :name="1"  :data="[1,2,3]"></b>
</div>

// B.vue
<div>
   <c ...$attrs></c>  //  How to leave it intact A The data from the component is transmitted to c ...$attrs It should be the wrong way of writing 
</div>

Then you can consider using provide/inject, Put this property in the parent component provide, Then inject... Into the sub component .

Then you can consider using provide/inject, Put this property in the parent component provide, Then inject... Into the sub component .