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1<a href="https://www.bing.com">打开必应</a>

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1<a href="https://www.bing.com" target="_blank">在新标签页打开必应</a>

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1pnpm i rehype-external-links

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1npm i rehype-external-links

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    "rehype-components": "^0.3.0",
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    "rehype-external-links": "^3.0.0",
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    "rehype-katex": "^7.0.1",

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新增的代码在132至137行

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import sitemap from "@astrojs/sitemap";
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import svelte from "@astrojs/svelte";
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import tailwind from "@astrojs/tailwind";
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import { pluginCollapsibleSections } from "@expressive-code/plugin-collapsible-sections";
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import { pluginLineNumbers } from "@expressive-code/plugin-line-numbers";
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import swup from "@swup/astro";
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import expressiveCode from "astro-expressive-code";
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import icon from "astro-icon";
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import { defineConfig } from "astro/config";
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import rehypeAutolinkHeadings from "rehype-autolink-headings";
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import rehypeComponents from "rehype-components"; /* Render the custom directive content */
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import rehypeKatex from "rehype-katex";
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import rehypeSlug from "rehype-slug";
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import remarkDirective from "remark-directive"; /* Handle directives */
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import remarkGithubAdmonitionsToDirectives from "remark-github-admonitions-to-directives";
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import remarkMath from "remark-math";
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import remarkSectionize from "remark-sectionize";
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import { expressiveCodeConfig } from "./src/config.ts";
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import { pluginLanguageBadge } from "./src/plugins/expressive-code/language-badge.ts";
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import { AdmonitionComponent } from "./src/plugins/rehype-component-admonition.mjs";
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import { GithubCardComponent } from "./src/plugins/rehype-component-github-card.mjs";
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import { parseDirectiveNode } from "./src/plugins/remark-directive-rehype.js";
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import { remarkExcerpt } from "./src/plugins/remark-excerpt.js";
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import { remarkReadingTime } from "./src/plugins/remark-reading-time.mjs";
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import { pluginCustomCopyButton } from "./src/plugins/expressive-code/custom-copy-button.js";
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import rehypeExternalLinks from 'rehype-external-links';
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// https://astro.build/config
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export default defineConfig({
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  site: "https://adclosenn.top",
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  base: "/",
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  trailingSlash: "always",
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  integrations: [
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    tailwind({
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      nesting: true,
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    }),
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    swup({
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      theme: false,
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      animationClass: "transition-swup-", // see https://swup.js.org/options/#animationselector
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      // the default value `transition-` cause transition delay
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      // when the Tailwind class `transition-all` is used
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      containers: ["main", "#toc"],
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      smoothScrolling: true,
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      cache: true,
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      preload: true,
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      accessibility: true,
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      updateHead: true,
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      updateBodyClass: false,
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      globalInstance: true,
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    }),
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    icon({
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      include: {
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        "preprocess: vitePreprocess(),": ["*"],
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        "fa6-brands": ["*"],
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        "fa6-regular": ["*"],
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        "fa6-solid": ["*"],
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      },
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    }),
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    expressiveCode({
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      themes: [expressiveCodeConfig.theme, expressiveCodeConfig.theme],
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      plugins: [
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        pluginCollapsibleSections(),
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        pluginLineNumbers(),
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        pluginLanguageBadge(),
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        pluginCustomCopyButton()
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      ],
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      defaultProps: {
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        wrap: true,
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        overridesByLang: {
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          'shellsession': {
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            showLineNumbers: false,
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          },
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        },
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      },
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      styleOverrides: {
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        codeBackground: "var(--codeblock-bg)",
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        borderRadius: "0.75rem",
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        borderColor: "none",
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        codeFontSize: "0.875rem",
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        codeFontFamily: "'Cascadia Mono', 'JetBrains Mono'",
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        codeLineHeight: "1.5rem",
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        frames: {
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          editorBackground: "var(--codeblock-bg)",
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          terminalBackground: "var(--codeblock-bg)",
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          terminalTitlebarBackground: "var(--codeblock-topbar-bg)",
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          editorTabBarBackground: "var(--codeblock-topbar-bg)",
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          editorActiveTabBackground: "none",
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          editorActiveTabIndicatorBottomColor: "var(--primary)",
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          editorActiveTabIndicatorTopColor: "none",
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          editorTabBarBorderBottomColor: "var(--codeblock-topbar-bg)",
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          terminalTitlebarBorderBottomColor: "none"
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        },
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        textMarkers: {
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          delHue: 0,
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          insHue: 180,
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          markHue: 250
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        }
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      },
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      frames: {
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        showCopyToClipboardButton: false,
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      }
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    }),
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        svelte(),
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    sitemap(),
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  ],
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  markdown: {
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    remarkPlugins: [
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      remarkMath,
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      remarkReadingTime,
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      remarkExcerpt,
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      remarkGithubAdmonitionsToDirectives,
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      remarkDirective,
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      remarkSectionize,
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      parseDirectiveNode,
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    ],
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    rehypePlugins: [
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      rehypeKatex,
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      rehypeSlug,
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      [
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        rehypeComponents,
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        {
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          components: {
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            github: GithubCardComponent,
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            note: (x, y) => AdmonitionComponent(x, y, "note"),
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            tip: (x, y) => AdmonitionComponent(x, y, "tip"),
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            important: (x, y) => AdmonitionComponent(x, y, "important"),
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            caution: (x, y) => AdmonitionComponent(x, y, "caution"),
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            warning: (x, y) => AdmonitionComponent(x, y, "warning"),
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          },
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        },
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      ],
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      [
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        rehypeExternalLinks,
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        {
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        target: '_blank',
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        },
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      ],
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      [
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        rehypeAutolinkHeadings,
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        {
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          behavior: "append",
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          properties: {
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            className: ["anchor"],
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          },
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          content: {
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            type: "element",
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            tagName: "span",
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            properties: {
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              className: ["anchor-icon"],
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              "data-pagefind-ignore": true,
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            },
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            children: [
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              {
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                type: "text",
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                value: "#",
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              },
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            ],
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          },
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        },
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      ],
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    ],
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  },
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  vite: {
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    build: {
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      rollupOptions: {
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        onwarn(warning, warn) {
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          // temporarily suppress this warning
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          if (
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            warning.message.includes("is dynamically imported by") &&
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            warning.message.includes("but also statically imported by")
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          ) {
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            return;
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          }
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          warn(warning);
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        },
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      },
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    },
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  },
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});