{"id":121,"date":"2025-11-28T12:08:52","date_gmt":"2025-11-28T12:08:52","guid":{"rendered":"https:\/\/hyc.eshachem.com\/program\/?p=121"},"modified":"2025-11-30T15:45:48","modified_gmt":"2025-11-30T15:45:48","slug":"%e7%94%a8react%e8%88%87scss%e5%af%a6%e7%8f%be%e6%89%93%e5%ad%97%e6%a9%9f%e6%95%88%e6%9e%9c","status":"publish","type":"post","link":"https:\/\/hyc.eshachem.com\/program\/%e7%94%a8react%e8%88%87scss%e5%af%a6%e7%8f%be%e6%89%93%e5%ad%97%e6%a9%9f%e6%95%88%e6%9e%9c\/","title":{"rendered":"\u7528react\u8207scss\u5be6\u73fe\u6253\u5b57\u6a5f\u6548\u679c"},"content":{"rendered":"\n<p class=\"\">\u81ea\u5df1\u5728\u7df4\u7fd2\u7684\u6642\u5019\uff0c\u7a81\u7136\u89ba\u5f97\u5f88\u50cf\u7528react\u89e3\u984c\uff0c\u65bc\u662f\u6c7a\u5b9a\u7167\u6163\u4f8b\u4f86\u5beb\u500b\u89e3\u984c\u5831\u544a!!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u984c\u76ee<\/h2>\n\n\n\n<p class=\"\">\u5be6\u73fe <strong>\u6253\u5b57 \u2192 \u505c\u7559 \u2192 \u522a\u5b57 \u2192 \u63db\u4e0b\u4e00\u53e5 \u2192 \u91cd\u8907\u5faa\u74b0<\/strong><\/p>\n\n\n\n<p class=\"\">\u5728\u8a31\u591a\u7db2\u7ad9\u9996\u9801\uff08Hero Section\uff09\u4e2d\uff0c\u5e38\u6703\u51fa\u73fe\u300c\u6253\u5b57\u6a5f\u6587\u5b57\u6548\u679c\u300d\uff08Typewriter Effect\uff09\uff0c\u900f\u904e\u9010\u5b57\u5448\u73fe\u7684\u65b9\u5f0f\u5438\u5f15\u7528\u6236\u6ce8\u610f\u3002<\/p>\n\n\n\n<p class=\"\">\u8acb\u4f60\u4f7f\u7528 <strong>React<\/strong> \u8207 <strong>SCSS<\/strong> \u5be6\u4f5c\u4e00\u500b\u6253\u5b57\u6a5f\u6548\u679c\u5143\u4ef6\uff0c\u4f7f\u5176\u53ef\u4ee5\u4f9d\u5e8f\u986f\u793a\u591a\u6bb5\u6587\u5b57\uff0c\u4e26\u65bc\u6bcf\u6bb5\u6587\u5b57\u8f38\u51fa\u5b8c\u6210\u5f8c\u77ed\u66ab\u505c\u9813\uff0c\u518d\u81ea\u52d5\u5207\u63db\u5230\u4e0b\u4e00\u6bb5\u3002<\/p>\n\n\n\n<p class=\"\">\u4f60\u7684\u4efb\u52d9\u662f\u8a2d\u8a08\u4e00\u500b\u5143\u4ef6 <code>&lt;Typewriter \/&gt;<\/code>\uff0c\u4e26\u6eff\u8db3\u4e0b\u5217\u884c\u70ba\u8981\u6c42\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u529f\u80fd\u8981\u6c42<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li class=\"\"><strong>\u9010\u5b57\u8f38\u51fa\u6587\u5b57<\/strong>\n<ul class=\"wp-block-list\">\n<li class=\"\">\u7d66\u5b9a\u4e00\u6bb5\u5b57\u4e32\uff0c\u9700\u6bcf\u9694\u56fa\u5b9a\u6642\u9593\u986f\u793a\u4e0b\u4e00\u500b\u5b57\u5143\u3002<\/li>\n\n\n\n<li class=\"\">\u986f\u793a\u65b9\u5f0f\u61c9\u985e\u4f3c\u6253\u5b57\u6a5f\u9010\u5b57\u5448\u73fe\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"\"><strong>\u652f\u63f4\u591a\u6bb5\u6587\u5b57\u5faa\u74b0\u64ad\u653e<\/strong>\n<ul class=\"wp-block-list\">\n<li class=\"\">\u8f38\u5165\u4e00\u500b\u5b57\u4e32\u9663\u5217 <code>texts<\/code>\u3002<\/li>\n\n\n\n<li class=\"\">\u6bcf\u6bb5\u6587\u5b57\u986f\u793a\u5b8c\u6210\u5f8c\u9700\uff1a\n<ul class=\"wp-block-list\">\n<li class=\"\">\u4fdd\u7559\u5b8c\u6574\u6587\u5b57\u4e00\u6bb5\u6642\u9593\uff08\u5982\uff1a1 \u79d2\uff09<\/li>\n\n\n\n<li class=\"\">\u518d\u81ea\u52d5\u5207\u63db\u5230\u4e0b\u4e00\u6bb5\u6587\u5b57<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"\">\u64ad\u653e\u5230\u6700\u5f8c\u4e00\u6bb5\u5f8c\u9700\u91cd\u65b0\u56de\u5230\u7b2c\u4e00\u6bb5\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"\"><strong>\u6587\u5b57\u5207\u63db\u6642\u4e0d\u5f97\u9020\u6210 DOM \u9583\u720d\u6216\u5e03\u5c40\u8df3\u52d5<\/strong>\n<ul class=\"wp-block-list\">\n<li class=\"\">\u9801\u9762\u4e0d\u61c9\u56e0\u70ba\u6587\u5b57\u9577\u5ea6\u8b8a\u5316\u800c\u767c\u751f\u9ad8\u5ea6\u8df3\u52d5\uff08layout shift\uff09\u3002<\/li>\n\n\n\n<li class=\"\">\u5207\u63db\u904e\u7a0b\u4e2d\u4e0d\u5f97\u51fa\u73fe\u7a7a\u767d DOM\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"\"><strong>\u4f7f\u7528 React Hooks \u5be6\u4f5c<\/strong>\n<ul class=\"wp-block-list\">\n<li class=\"\">\u5fc5\u9808\u4f7f\u7528 <code>useState<\/code>\u3001<code>useEffect<\/code> \u4f86\u63a7\u5236\u5b57\u5143\u589e\u52a0\u8207\u5207\u63db\u3002<\/li>\n\n\n\n<li class=\"\">\u70ba\u907f\u514d ESLint \u8b66\u544a\uff0c\u5b57\u4e32\u9663\u5217\u9700\u642d\u914d <code>useMemo()<\/code> \u4fdd\u8b49\u4e0d\u5728\u6bcf\u6b21 render \u91cd\u65b0\u5efa\u7acb\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"\"><strong>\u6a23\u5f0f\u9700\u4f7f\u7528 SCSS<\/strong>\n<ul class=\"wp-block-list\">\n<li class=\"\">\u5be6\u73fe\u6587\u5b57\u9583\u720d\u6e38\u6a19\uff08blinking cursor\uff09<\/li>\n\n\n\n<li class=\"\">\u6548\u679c\u9700\u4ee5 SCSS \u64b0\u5beb\uff0c\u4f8b\u5982\u52d5\u756b\u3001\u904e\u6e21\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u8f38\u5165\u683c\u5f0f<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">\u50b3\u5165 <code>&lt;Typewriter \/&gt;<\/code> \u7d44\u4ef6\u7684 props\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>interface TypewriterProps {\n  texts: string&#91;];   \/\/ \u6b32\u986f\u793a\u4e4b\u591a\u6bb5\u6587\u5b57\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u8f38\u51fa\u683c\u5f0f<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">\u5143\u4ef6\u9700\u6e32\u67d3\u4e00\u6bb5\u9010\u5b57\u986f\u793a\u7684\u6587\u5b57\uff0c\u540c\u6642\u5305\u542b\u9583\u720d\u6e38\u6a19\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;span class=\"typewriter-text\"&gt;\u76ee\u524d\u986f\u793a\u4e2d\u7684\u6587\u5b57&lt;\/span&gt;\n&lt;span class=\"cursor\"&gt;&lt;\/span&gt;<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7bc4\u4f8b<\/h2>\n\n\n\n<p class=\"\">\u82e5\u50b3\u5165\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>texts = &#91;'Hello', 'Welcome to my website', 'Frontend Developer'];<\/code><\/pre>\n\n\n\n<p class=\"\">\u986f\u793a\u6d41\u7a0b\u61c9\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>H \u2192\nHe \u2192\nHel \u2192\nHell \u2192\nHello \u2192\n\uff08\u505c 1 \u79d2\uff09\nW \u2192\nWe \u2192\nWel \u2192\n\u2026\nFrontend Developer \u2192\n\uff08\u505c 1 \u79d2\uff09\n\u2192 \u56de\u5230 Hello \u91cd\u65b0\u958b\u59cb<\/code><\/pre>\n\n\n\n<p class=\"\">\u6574\u500b\u904e\u7a0b\u9808\u9023\u7e8c\u5e73\u6ed1\u9032\u884c\uff0c\u4e0d\u5f97\u6709\u9583\u720d\u8207\u8df3\u52d5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u89e3\u984c\u7d72\u8def<\/h2>\n\n\n\n<p class=\"\">\u5176\u5be6\u8981\u5be6\u73fe\u6253\u5b57\u6a5f\u6548\u679c\uff0c\u6838\u5fc3\u7d72\u8def\u53ea\u6709:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li class=\"\">\u52d5\u756b\u6548\u679c<\/li>\n\n\n\n<li class=\"\">\u73fe\u5728\u662f\u6253\u5b57\u9084\u662f\u522a\u5b57<\/li>\n\n\n\n<li class=\"\">\u73fe\u5728\u8981\u986f\u793a\u54ea\u4e00\u53e5\n<ol class=\"wp-block-list\">\n<li class=\"\">\u73fe\u5728\u9019\u53e5\u7684\u7b2c\u5e7e\u500b\u5b57<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"\">\u8a2d\u4e00\u500b\u8b8a\u6578subIndex\uff0c\u8ffd\u8e64\u73fe\u5728\u7684\u53e5\u5b50(S)\u7684\u7b2c\u5e7e\u5b57(i)\uff0c\u5982\u679c\u662f\u6253\u5b57\uff0csubIndex++\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/p>\n\n\n\n<p class=\"\">\u8a73\u89e3\u63a1\u7528Dynamic Style Injection\u3002<\/p>\n\n\n\n<p class=\"\">\u6211\u5011\u53ef\u4ee5\u5148\u6839\u64da\u984c\u76ee\u8aaa\u7684\u5167\u5bb9\u4ee5\u53ca\u60f3\u6cd5\uff0c\u628a\u4e00\u4e9b\u57fa\u790e\u7684\u6771\u897f\u5beb\u51fa\u4f86\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import { useState } from \"react\";\n\nexport default function Index({texts}: {string&#91;]}) {\n\t\tconst &#91;index, setIndex] = useState(0); \/\/ \u73fe\u5728\u7b2cindex\u53e5\n\t\tconst &#91;subIndex, setSubIndex] = useState(0); \/\/ \u73fe\u5728\u7b2cindex\u53e5\u7684subIndex\u500b\u5b57\n\t\tconst &#91;deleting, setDeleting] = useState(true); \/\/ \u662f\u5426\u662f\u6253\u5b57\u72c0\u614b\n\t\t\n    const current = texts&#91;index]; \/\/ \u53d6\u51fa\u7576\u524d\u5b57\n\n\t  return (\n\t    &lt;div>\n\t\t    {\/* \u7528substring()\u65b9\u6cd5\u53d6\u51fa\u5b50\u5b57\u4e32*\/}\n\t      &lt;span>{current.substring(0, subIndex)}&lt;\/span>\n\t      &lt;span className=\"cursor\">|&lt;\/span>\n\t    &lt;\/div>\n\t  );\n}\nconst style = document.createElement('style');\nstyle.textContent = `\n    .cursor {\n        margin-left: 2px;\n        animation: blink 0.8s infinite;\n    }\n\n    @keyframes blink {\n        0%, 50% { opacity: 0; }\n        51%, 100% { opacity: 1; }\n    }\n    \n`;\ndocument.head.appendChild(style);\n<\/code><\/pre>\n\n\n\n<p class=\"\">\u57fa\u790e\u7684\u6771\u897f\u5beb\u5b8c\u4e86\uff0c\u73fe\u5728\u7684\u554f\u984c\u662f: \u5982\u4f55\u5c07\u5b57\u5143\u4e00\u500b\u500b\u7684\u986f\u793a\u51fa\u4f86?<\/p>\n\n\n\n<p class=\"\">\u5148\u4f86\u91d0\u6e05\u6253\u5b57\u6a5f\u6548\u679c\u7684\u771f\u6b63\u610f\u7fa9:\u662f\u4e00\u7a2e <strong>\u300c\u6642\u9593\u9a45\u52d5\u7684\u52d5\u756b\uff0c\u96a8\u6642\u9593\u8b8a\u5316\u7684 state\u300d<\/strong><\/p>\n\n\n\n<p class=\"\">React \u53ea\u6709\u5169\u7a2e\u65b9\u5f0f\u80fd\u8b93 state \u96a8\u6642\u9593\u8b8a\u5316\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>setTimeout<\/strong><\/li>\n\n\n\n<li class=\"\"><strong>useEffect<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"\">\u800c <strong>useEffect \u662f\u552f\u4e00\u6703\u5728 state \u8b8a\u5316\u6642\u57f7\u884c\u526f\u4f5c\u7528\u7684HOOK\uff0c\u6240\u4ee5\u9019\u984c\u63a1\u7528useEffect !!<\/strong><\/p>\n\n\n\n<p class=\"\">\u958b\u59cb\u4f86\u5bebuseEffect!!<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    useEffect(() => {\n        if (deleting &amp;&amp; subIndex === current.length){ \/\/ \u5982\u679c\u6253\u5b57\u6253\u5230\u8ddf\u53e5\u5b50\u4e00\u6a23\u9577\n            const timeout = setTimeout(() => setDeleting(false), 1200);\/\/ \u6539\u6210\u522a\u5b57\uff0c\u4e26\u505c\u75591200\u79d2\n            return () => clearTimeout(timeout); \/\/ \u6e05\u7406\u526f\u4f5c\u7528\n        }\n        if (!deleting &amp;&amp; subIndex === 0) {\/\/ \u5982\u679c\u522a\u5b57\u522a\u52300 \u63db\u4e0b\u4e00\u53e5\n            setDeleting(true); \/\/ \u958b\u59cb\u6253\u5b57\n            setIndex((index + 1) % texts.length);\n            return;\n        }\n        \/\/ \u7528 setTimeout \u8b93\u5b83\u6bcf\u9694 60~120ms \u52d5\u4e00\u6b21\n        const timeout = setTimeout(\n            () => setSubIndex(subIndex + (!deleting ? -1 : 1)),\n            deleting ? 120 : 60 \/\/ \u6253\u5b57\u6162\u522a\u5b57\u5feb\n        );\n        return () => clearTimeout(timeout);\/\/ \u6e05\u7406\u526f\u4f5c\u7528\n    }, &#91;subIndex, deleting, index, texts, current]);<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">css<\/h1>\n\n\n\n<pre class=\"wp-block-code\"><code>const style = document.createElement('style');\nstyle.textContent = `\n    .typewriter-line {\n        font-size: 15px;\n        white-space: nowrap;\n        display: inline-flex;\n        align-items: center; \n        height: 1.5em; \n    }\n\n    .cursor {\n        margin-left: 2px;\n        animation: blink 0.8s infinite;\n       \n    }\n\n    @keyframes blink {\n        0%, 50% { opacity: 0; }\n        51%, 100% { opacity: 1; }\n    }\n    \n    \n`;\ndocument.head.appendChild(style);<\/code><\/pre>\n\n\n\n<p class=\"\">\u8a18\u5f97\u5728\u7236\u5c64\u547c\u53eb\u6642\uff0c\u7236\u5c64\u7684css\u8981\u56fa\u5b9a\u9ad8\u5ea6\uff0c\u907f\u514dJS\u518d\u63db\u884c\u7684\u6642\u5019\u51fa\u73fedom\u662fNull\uff0c\u5c0e\u81f4\u8449\u9762\u5176\u4ed6\u5143\u7d20\u88ab\u5f80\u4e0a\u79fb\u3002&#8220;height: 1.5em;&#8220;<\/p>\n\n\n\n<p class=\"\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u81ea\u5df1\u5728\u7df4\u7fd2\u7684\u6642\u5019\uff0c\u7a81\u7136\u89ba\u5f97\u5f88\u50cf\u7528react\u89e3\u984c\uff0c\u65bc\u662f\u6c7a\u5b9a\u7167\u6163\u4f8b\u4f86\u5beb\u500b\u89e3\u984c\u5831\u544a!! \u984c\u76ee \u5be6\u73fe \u6253\u5b57 \u2192 \u505c\u7559 \u2192 \u522a\u5b57 \u2192 \u63db\u4e0b\u4e00\u53e5 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-121","post","type-post","status-publish","format-standard","hentry","category-front-end"],"_links":{"self":[{"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/posts\/121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/comments?post=121"}],"version-history":[{"count":3,"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/posts\/121\/revisions"}],"predecessor-version":[{"id":126,"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/posts\/121\/revisions\/126"}],"wp:attachment":[{"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/media?parent=121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/categories?post=121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hyc.eshachem.com\/program\/wp-json\/wp\/v2\/tags?post=121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}