如何使用react中的“下一步”和“上一步”按钮将日期增加和减少1天？

import React, { Component } from 'react';

class DateComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      currentDate: new Date()
    };
  }

  handleNextDay = () => {
    const { currentDate } = this.state;
    const nextDay = new Date(currentDate);
    nextDay.setDate(nextDay.getDate() + 1);
    this.setState({ currentDate: nextDay });
  }

  handlePreviousDay = () => {
    const { currentDate } = this.state;
    const previousDay = new Date(currentDate);
    previousDay.setDate(previousDay.getDate() - 1);
    this.setState({ currentDate: previousDay });
  }

  render() {
    const { currentDate } = this.state;

    return (
      <div>
        <p>{currentDate.toDateString()}</p>
        <button onClick={this.handlePreviousDay}>上一步</button>
        <button onClick={this.handleNextDay}>下一步</button>
      </div>
    );
  }
}

export default DateComponent;