React 函数传参

import React, { Component } from 'react';
import { render } from 'react-dom'; class GroceryList extends Component { handleClick(i) { console.log('You clicked: ' + this.props.items[i]); } render() { return ( <div> {this.props.items.map((item, i) => { return ( <div onClick={this.handleClick.bind(this, i)} key={i}>{item}</div> ); })} </div> ); } } render( <GroceryList items={['Apple', 'Banana', 'Cranberry']} />, mountNode );