react 数据传递

Posted 2020-12-08 ssszjh

class Board extends React.Component {
  renderSquare(i) {
    return <Square value={i} />;
  }
}

class Square extends React.Component {
  render() {
    return (
      <button className="square">
        {this.props.value}
      </button>
    );
  }
}

Board组件引用了Square组件；
父组件Boaed通过属性名={参数}，传递
子组件通过{this.props.属性名}接收