在不使用DOM选择器的情况下在React中实现滚动函数

import React, { Component } from 'react';

class ScrollComponent extends Component {
  constructor(props) {
    super(props);
    this.scrollRef = React.createRef();
    this.state = {
      scrollPosition: 0,
    };
  }

  componentDidMount() {
    this.scrollRef.current.addEventListener('scroll', this.handleScroll);
  }

  componentWillUnmount() {
    this.scrollRef.current.removeEventListener('scroll', this.handleScroll);
  }

  handleScroll = () => {
    this.setState({
      scrollPosition: this.scrollRef.current.scrollTop,
    });
  }

  render() {
    return (
      <div ref={this.scrollRef} style={{ height: '200px', overflow: 'auto' }}>
        {/* 滚动内容 */}
      </div>
    );
  }
}