cp from : https://blog.csdn.net/wyk304443164/article/details/77093339
没有考虑到兼容性，因为我们暂时只适配了webkit。
也没有考虑到懒加载，因为项目比较紧有需要加的朋友看react-lazyload，也比较简单，现成的轮子
/** * Created by wuyakun on 2017/8/11. * 会显示默认图片的image */import React from ‘react‘;class DefaultImage extends React.Component { ???constructor(props) { ???????super(props); ???????this.state = { ???????????src: this.props.src ? this.props.src : ‘‘, ???????} ???} ???handleImageLoaded() { ???????//加载完毕 ???} ???handleImageErrored() { ???????//加载失败 ???????this.setState({ ???????????src: require(‘../../images/default.jpg‘) ???????}); ???} ???render() { ???????let props = this.props; ???????let {src} = this.state; ???????return ( ???????????<img ???????????????{...props} ???????????????src={src} ???????????????onLoad={this.handleImageLoaded.bind(this)} ???????????????onError={this.handleImageErrored.bind(this)} ???????????/> ???????); ???}}export default DefaultImage;[Web 前端] ??React Js img 图片显示默认 占位符
原文地址：https://www.cnblogs.com/0616--ataozhijia/p/9189062.html