如何从非React环境中更新组件？

// 引入React相关库和依赖
const React = require('react');
const ReactDOM = require('react-dom');

// 创建一个React组件
class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      count: 0
    };
  }

  handleClick() {
    this.setState(prevState => ({
      count: prevState.count + 1
    }));
  }

  render() {
    return (
      <div>
        <p>Count: {this.state.count}</p>
        <button onClick={() => this.handleClick()}>Increase Count</button>
      </div>
    );
  }
}

// 渲染组件
ReactDOM.render(<MyComponent />, document.getElementById('root'));

// 更新组件
ReactDOM.render(<MyComponent />, document.getElementById('root'));