react typescript 子组件给父组件传值

//父组件

import * as React from 'react'
import { Input } from 'antd'
const Search = Input.Search
import "./index.less"
import Child from "./compon/list"

export default class ProjectList extends React.Component<IProps>{
  constructor(props: IProps) {
    super(props)
    
  }

handle = (val) => {　　//val就是子组件传的值1
  console.log(val)
  // this.setState({
  //   mess:val
  // })
}render(){

   
  return (
    <div>
　

　　<Child  GETState= {this.handle.bind(this)} />

　　</div>

)
}

}
//子组件

import * as React from 'react'
import { Row, Col } from 'antd';
import "./list.less"

interface IProps {
 msg?: any
  MakeMoney?:any
  GETState?: any  //主要这段代码
}
interface IState {
  lg?: any
  
}

export  default class List extends React.Component<IProps, IState> {
  constructor(props: IProps) {
    super(props)
    
  }
  state = {
    lg: 6,
    a:68
  }
  toggle = () => {
    console.log('f')
      this.setState({
        lg: 12
      })
  }


  render(){
    console.log(this.props.msg)
   const { lg } = this.state;
    return (
      <div>
        <button onClick={() => this.props.GETState(this.state.a)}>子组件</button>
　　）
}