lovecoding
/
W250511


			
				
					
						
						
							12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364
							<!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">
        let root = ReactDOM.createRoot(document.getElementById("root"));
        function App() {
            return (
                <Count />
            )
        }
        class Count extends React.Component {
            constructor() {
                super();
                this.state = {
                    list: [
                        "图图",
                        "哆啦A梦",
                        "喜羊羊",
                        "光头强"
                    ]
                }
            }
            render() {
                // map、for、for in、for of、forEach、while、do while、some、every
                let { list } = this.state;
                let aa = list.map((item,index) => <li key={index}>{item}</li>)
                return (
                    <div>
                        <h1>列表渲染</h1>
                        <ul>
                            {aa}    
                        </ul>
                        {/*
                           list.map((item,index)=> {
                            
                        })
                           */}
                        {
                            /*
                             <ul>
                                <li>{list}</li>    
                            </ul>
                            */
                        }
                    </div>
                )
            }
        }
        root.render(<App />);
    </script>
</body>

</html>