即使在绑定`this`之后，This.setState也不会设置状态

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      count: 0
    };
    // 绑定this
    this.handleClick = this.handleClick.bind(this);
  }

  handleClick() {
    // 使用箭头函数定义事件处理函数
    this.setState((prevState) => ({
      count: prevState.count + 1
    }));
  }

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