使用componentdidmount方法中传递给组件的数据

// 父组件
import React, { Component } from 'react';
import ChildComponent from './ChildComponent';

class ParentComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      data: 'Hello World',
    };
  }

  render() {
    return (
      <div>
        <ChildComponent data={this.state.data} />
      </div>
    );
  }
}

export default ParentComponent;

// 子组件
import React, { Component } from 'react';

class ChildComponent extends Component {
  componentDidMount() {
    const { data } = this.props;
    // 在componentDidMount中使用传递的数据
    console.log(data);
  }

  render() {
    return <div>Child Component</div>;
  }
}

export default ChildComponent;