获取类型错误无法分析属性，因为它在React中未定义

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      myData: null // 或者其他默认值
    };
  }

  render() {
    return (
      <div>
        {this.state.myData ? <p>{this.state.myData}</p> : <p>Loading...</p>}
      </div>
    );
  }
}

// 父组件
class ParentComponent extends React.Component {
  render() {
    return <ChildComponent myProp="someValue" />;
  }
}

// 子组件
class ChildComponent extends React.Component {
  render() {
    return <div>{this.props.myProp}</div>;
  }
}

class AsyncDataComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      data: null,
      isLoading: true
    };
  }

  componentDidMount() {
    fetch('https://api.example.com/data')
      .then(response => response.json())
      .then(data => {
        this.setState({ data, isLoading: false });
      });
  }

  render() {
    if (this.state.isLoading) {
      return <p>Loading...</p>;
    }
    return (
      <div>
        {this.state.data ? <p>{JSON.stringify(this.state.data)}</p> : <p>No data available</p>}
      </div>
    );
  }
}