博客

父组件

import {createContext} from 'react';
import SearchPart from './searchpart';  //引入子组件

export const FatherContext = createContext();

function AAA(){
	const [AA, setAA] = useState(Array);
	const BB= useSelector(state => state.BB.data);
	.....
	return (
	   <div>
	     <FatherContext.Provider
	       value={{
	         AAA: AA,
	         BBB: BB,
	       }}
	     >
	       <SearchPart/>  //子组件
	     </FatherContext.Provider>
	     <div>
	 )
	 .....
}

子组件

import {useContext} from 'react';
import { FatherContext } from './index';
function SearchPart(){
	const AAA=useContext(FatherContext).AAA;
	const BBB=useContext(FatherContext).BBB;
	......
}

就可以直接使用了

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