lovecoding
/
web0715


			
				
					
						
						
							12345678910111213141516171819202122232425262728293031323334353637383940414243
							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- jsx 语法浏览器不识别 jsx => js 浏览器可识别的语言 -->
    <script src="./babel.min.js"></script>
    <!-- react的核心库 -->
    <script src="./react.development.js"></script>
    <!-- 解析react中的dom库 -->
    <script src="./react-dom.development.js"></script>
</head>
<body>
    <div id="root">
        <!-- 
            vue 插值模板 {{}}
            react 动态绑定 {}
        -->
    </div>
    <script type="text/babel">
        let root = ReactDOM.createRoot(document.getElementById("root"));

        const name = '哆啦A梦';
        const myName = <h1>我叫:{name}</h1>
        // jsx 
        const number = <h2>总数量:{2+8}</h2>
        // 图片
        const pictures = <img src='https://ts1.cn.mm.bing.net/th/id/R-C.57384e4c2dd256a755578f00845e60af?rik=uy9%2bvT4%2b7Rur%2fA&riu=http%3a%2f%2fimg06file.tooopen.com%2fimages%2f20171224%2ftooopen_sy_231021357463.jpg&ehk=whpCWn%2byPBvtGi1%2boY1sEBq%2frEUaP6w2N5bnBQsLWdo%3d&risl=&pid=ImgRaw&r=0' />
        // 反转字符
        const str = '快开学了';
        // const arr = Array.from(str);
        // const arr1 = [];
        // for(var i=arr.length-1;i>=0;i--) {
        //     arr1.push(arr[i]);
        // } 
        const str1 = str.split("").reverse().join("");  
        const str2 = [...str].reverse().join(""); 
        console.log(str2);     
        root.render(pictures)        
    </script>
</body>
</html>