{"id":1061,"date":"2023-03-12T10:18:37","date_gmt":"2023-03-12T02:18:37","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1061"},"modified":"2023-04-29T11:47:15","modified_gmt":"2023-04-29T03:47:15","slug":"introduction-to-react-js-learning","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/12\/introduction-to-react-js-learning\/","title":{"rendered":"React.js\u5b66\u4e60\u5165\u95e8"},"content":{"rendered":"

\u5b98\u7f51\uff1ahttps:\/\/reactjs.org<\/a><\/p>\n

\u521b\u5efa\u9879\u76ee<\/h2>\n
npx create-react-app my-app\ncd my-app\nyarn start<\/code><\/pre>\n
<\/p>\n
\u6253\u5f00\uff1ahttp:\/\/127.0.0.1:3000\/<\/a><\/p>\n
\u76ee\u5f55\u7ed3\u6784<\/h2>\n
public<\/code>\uff1a\u4e2d\u9ed8\u8ba4\u5b58\u5728index.html<\/code>\u6587\u4ef6\uff0c\u53ea\u6709\u4e00\u4e2aid=root<\/code>\u7684div<\/code>\uff0c\u8fd9\u662f\u5e94\u7528\u7ec4\u4ef6\u7684\u6839\u8282\u70b9\uff0c\u5728react\u5f00\u53d1\u4e2d\u6211\u4eec\u4e0d\u9700\u8981\u53bb\u76f4\u63a5\u7f16\u5199html\u6587\u4ef6\uff0c\u800c\u662f\u901a\u8fc7js\u751f\u6210\u9875\u9762\uff0c\u6e32\u67d3\u5230\u8fd9\u4e2a\u6839\u8282\u70b9\u4e2d
\nsrc<\/code>\uff1a\u5b58\u653ecss\u4e0ejs
\nindex.js<\/code>\uff1a\u6574\u4e2a\u5de5\u7a0b\u7684\u5165\u53e3\uff0c\u53ef\u4ee5\u770b\u5230\uff0c\u5c06<App \/><\/code>\u7ec4\u4ef6\u6e32\u67d3\u5230\u4e86index.html<\/code>\u7684root<\/code>\u8282\u70b9\u91cc<\/p>\n
Hello World<\/h2>\n
\u57fa\u672c\u8bed\u6cd5<\/h3>\n
ReactDOM.render(\n  <h1>Hello, world!<\/h1>,\n  document.getElementById('root')\n);<\/code><\/pre>\n
\u9879\u76ee\u96c6\u6210<\/h3>\n
hello.js<\/p>\n
import React from 'react';\n\nfunction Hello() {\n    return (\n        <h1>Hello, world!<\/h1>\n    );\n}\n\nexport default Hello;<\/code><\/pre>\n
index.js<\/p>\n
import React from 'react';\nimport ReactDOM from 'react-dom';\nimport '.\/index.css';\n\/\/import App from '.\/App';\nimport Hello from '.\/hello';\nimport * as serviceWorker from '.\/serviceWorker';\n\nReactDOM.render(<Hello \/>, document.getElementById('root'));\n\n\/\/ If you want your app to work offline and load faster, you can change\n\/\/ unregister() to register() below. Note this comes with some pitfalls.\n\/\/ Learn more about service workers: https:\/\/bit.ly\/CRA-PWA\nserviceWorker.unregister();<\/code><\/pre>\n
React\u4e2d\u5e38\u89c1\u7684ES6\u5199\u6cd5<\/h2>\n
\u5f15\u5165\u6a21\u5757\u7528import\u5b9e\u73b0\uff1a<\/p>\n
import Hello from '.\/base\/hello';<\/code><\/pre>\n
\u5bfc\u51fa\u6a21\u5757\u7528export default\u5b9e\u73b0\uff1a<\/p>\n
export default Hello<\/code><\/pre>\n
\u5b9a\u4e49\u7ec4\u4ef6\u7528\u7ee7\u627f\u81eaReact.Component\u7684class\u6765\u5b9e\u73b0\uff1a<\/p>\n
class Hello extends React.Component {\n  render() {\n    ...\n  }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5b98\u7f51\uff1ahttps:\/\/reactjs.org \u521b\u5efa\u9879\u76ee npx create-react-app my-app […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-1061","post","type-post","status-publish","format-standard","hentry","category-react"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1061"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1061\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}