React.js:传递文件数组onChange的HTML输入

import React from 'react';

class FileInput extends React.Component {
  constructor(props) {
    super(props);
    this.handleFileChange = this.handleFileChange.bind(this);
  }

  handleFileChange(event) {
    const files = Array.from(event.target.files);
    this.props.onChange(files);
  }

  render() {
    return (
      <input type="file" multiple onChange={this.handleFileChange} />
    );
  }
}

export default FileInput;

import React from 'react';
import FileInput from './FileInput';

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      files: []
    };
    this.handleFileChange = this.handleFileChange.bind(this);
  }

  handleFileChange(files) {
    this.setState({ files });
  }

  render() {
    return (
      <div>
        <h1>文件数组：</h1>
        <FileInput onChange={this.handleFileChange} />
        <ul>
          {this.state.files.map((file, index) => (
            <li key={index}>{file.name}</li>
          ))}
        </ul>
      </div>
    );
  }
}

export default App;