React组件三

<script>

<!-- getDefalutPros 设置组件的默认值-->
<!--var Mytitle=React.createClass({
getDefaultProps:function(){
return {
title:"Hello World!"
};
},
render:function(){
return <h1> {this.props.title} </h1>;
}
});
ReactDOM.render(
<Mytitle />,
document.body
); -->
</script>