在頭部部分，我添加了需要完成的 CDN 鏈接。<head> <meta charset="UTF-8"> <title>First Component</title> <script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script> <script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script> <script crossorigin src="https://unpkg.com/react-dom-factories@1.0.0/index.js"></script></head>在正文部分，我提到了我編寫了反應(yīng)代碼的元素，請檢查正文中的元素工作正常，但反應(yīng)組件沒有呈現(xiàn)。<body> <div id="app"></div> <h1>Hello</h1> <script type="text/javascript"> class Pet extends React.component{ render (){ const h2 = ReactDOMFactories.h2(null, "Potter"); const img = ReactDomFactories.img({src:"https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Indian_spitz_adult.JPG/640px-Indian_spitz_adult.JPG", alt:"Potter my dog"}); return ReactDomFactories.div(null, h2,img); } } ReactDom.render(React.createElement(Pet),document.getElementById("app")); </script> </body>在上面的代碼元素中顯示正常，但 react-dom 沒有呈現(xiàn)。
React-DOM 沒有渲染網(wǎng)頁中的元素
開滿天機(jī)
2022-10-21 15:40:10
