引入js文件

<script src='js/react.min.js'></script>
<script src='js/react-dom.min.js'></script>
<script src='js/prop-types.js'></script>
<script src="js/index.js"></script>

关注公众号，免费赠送安装视频教程、环境和学习视频，后面会不断更新。