如何部分更新本地状态值？

import React, { Component } from 'react';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      name: 'John',
      age: 25,
      email: 'john@example.com'
    };
  }

  updateNameAndEmail() {
    this.setState(prevState => ({
      ...prevState,
      name: 'Jane',
      email: 'jane@example.com'
    }));
  }

  render() {
    return (
      <div>
        <p>Name: {this.state.name}</p>
        <p>Age: {this.state.age}</p>
        <p>Email: {this.state.email}</p>
        <button onClick={() => this.updateNameAndEmail()}>Update Name and Email</button>
      </div>
    );
  }
}

export default MyComponent;