访问React表中的嵌套JSON

import React from 'react';

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      data: {
        name: 'John',
        age: 25,
        address: {
          city: 'New York',
          country: 'USA'
        }
      }
    };
  }

  render() {
    // 访问嵌套JSON中的属性
    const name = this.state.data.name;
    const age = this.state.data.age;
    const city = this.state.data.address.city;
    const country = this.state.data.address.country;

    return (
      <div>
        <p>Name: {name}</p>
        <p>Age: {age}</p>
        <p>Address: {city}, {country}</p>
      </div>
    );
  }
}

export default MyComponent;