React-在子组件中调用父方法

试试这个。将功能作为道具传递给子组件。

import Parent from './parent.js';class Child extends React.Component {    constructor(props) {        super(props);        };    click = () => {        this.props.parentMethod();    }    render() {          <div onClick={this.click}>Hello Child</div>    }}class Parent extends React.Component {    constructor(props) {        super(props);        };    someMethod() {        console.log('bar');    }    render() {          <Child parentMethod={this.someMethod}>Hello Parent, {this.props.children}</Child>    }}