在React JS中，使用react-select要在取消选中复选框后将选项设置为默认值

npm install react-select

import React from 'react';
import Select from 'react-select';
import 'react-select/dist/react-select.css';

state = {
  selectedOption: null // 默认值
};

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

  return (
    <Select
      value={selectedOption}
      onChange={this.handleChange}
      options={options}
    />
  );
}

handleChange = (selectedOption) => {
  if (selectedOption === null) {
    selectedOption = defaultValue; // 将选项设置为默认值
  }

  this.setState({ selectedOption });
}