React 功能组件不渲染但用于

Question

我的功能组件没有被渲染，首先我尝试使用 react-router 访问它，但目前我将它而不是 App 组件正确传递给 index.js 渲染 function。 其他组件被渲染。 如果您至少可以分享您的经验，那将是惊人的，可能是什么原因？

这个组件是问题所在，它没有被渲染：

 <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script> export default function MZsPopular() { return ( <> <Header><HeaderImg src="../../assets/headerpic.png"/><Navbar><span>mypage</span>| <span>log out</span></Navbar></Header> <Content><SideBar/><RightFrame><Title>The story of Generation MZ<Subtitle>Popular</Subtitle></Title> <Tables> <Table> <thead> <tr> <th>Group</th> <th>Title</th> </tr> </thead> <tbody> <tr><td><div></div></td><td>MZs general forum All time likes post 1</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>MZs general forum All time likes post 2</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>MZs general forum All time likes post 3</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>MZs general forum All time likes post 4</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>MZs general forum All time likes post 5</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> </tbody> </Table> <RightTable> <thead><tr><th>Title</th></tr></thead> <tbody><tr><td>ID</td><td>MZs Recent 3 days likes post. MZs Recent 3 days likes post. MZs Recent 3 days likes post. MZs Recent 3 days likes post. MZs Recent 3 days likes post. MZs Recent 3 days likes post.</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> </tbody></RightTable> </Tables> </RightFrame></Content> </> ) }

这个组件被渲染：

 <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script> export default function PoliticsWe() { return ( <> <Header><HeaderImg src="../../assets/headerpic.png"/><Navbar><span>mypage</span>| <span>log out</span></Navbar></Header> <Content><SideBar/><RightFrame><Title>Politics<Subtitle>We Forum</Subtitle></Title> <Tables> <Table> <thead> <tr> <th>Group</th> <th>Title</th> </tr> </thead> <tbody> <tr><td><div></div></td><td>Politics Our Forum 1 All time likes post. Politics Our Forum 1 All time likes post. Politics Our Forum 1 All time likes post. Politics Our Forum 1 All time likes post. Politics Our Forum 1 All time likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>Politics Our Forum 2 All time likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>Politics Our Forum 3 All time likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>Politics Our Forum 4 All time likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td><div></div></td><td>Politics Our Forum 5 All time likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> </tbody> </Table> <RightTable> <thead><tr><th>Title</th></tr></thead> <tbody><tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> <tr><td>ID</td><td>MZs Recent 3 days likes post</td><td><div><span><img src="../../assets/likes.png" alt=""/>3526</span><span><img src="../../assets/comments.png" alt=""/>3526</span></div></td></tr> </tbody></RightTable> </Tables> </RightFrame></Content> </> ) }

Answer 1

我发现我只是巧合地评论了组件的一部分，这就是它没有渲染的原因