1-6 state and binding events

React I have uploaded the dependent package to the following address ：https://download.csdn.net/download/weixin_39162041/86264167

	<script type="text/babel" > /*  Be sure to write here babel */
        class Wather extends React.Component{
            constructor(props){
            // Three elements of examples props
            //1. Inherited attributes , Must call super()
            //2.state The default is an empty object 、
            //3. Use curly braces to bind events to elements . Don't put parentheses , Try to be a swordsman document.getElementById The use of this method 
                super(props)
                this.state = {isHot:true}
            }
            render(){
                return <h1 onClick={demo}> It's very... Today {this.state.isHot ?' scorching hot ':' cool '}</h1>
            }
        }
        ReactDOM.render(<Wather/>,document.getElementById('test'))
        function demo(){
            console.log(' By clicking the ');
        }
	</script>