父组件

class Father extends Component {
    construtor(props){
        super(props);
        this.state={
            name: 'Peter',age: '26'
        }
    }
    onChangeState(stateName){
        this.setState(stateName)
    }
    render(){
        <p>姓名：{this.state.name}</p>
        <p>年龄：{this.state.age}</p>
        <Child onClicked={this.onChangeState.bind(this)}/>
    }
}

子组件

class Child extends Component {
    render(){
        <Button onClick={()=>this.props.onClicked({name: 'John'})}/>
    }
}