Testaccount
/
1.Test


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../babel.min.js"></script>
    <script src="../react.development.js"></script>
    <script src="../react-dom.development.js"></script>
</head>
<body>
    <div id="root"></div>
    <script type="text/babel">
        class Meat extends React.Component {
            state={
                title:"计数器",
                count:0,
            };
            Add(){
                this.setState({
                    count:this.state.count + 1,
                });
            };
            reduce(){
                this.setState({
                    count:this.state.count - 1,
                });
            };
            render(){
                return(
                    <div>
                    <h2>{this.state.title}</h2>
                    <p>当前数值:{this.state.count}</p>
                    <button onClick={this.Add.bind(this)}>+</button>
                    <button onClick={this.reduce.bind(this)}>-</button>    
                        </div>
                );
            }
        }
        let element = <Meat/>;
        ReactDOM.createRoot(document.querySelector("#root")).render(element)
    </script>
</body>
</html>