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docs/zh/guide/sitemap-generation.md

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+# Sitemap Generation
+
+VitePress comes with out-of-the-box support for generating a `sitemap.xml` file for your site. To enable it, add the following to your `.vitepress/config.js`:
+
+```ts
+import { defineConfig } from 'vitepress'
+
+export default defineConfig({
+  sitemap: {
+    hostname: 'https://example.com'
+  }
+})
+```
+
+To have `<lastmod>` tags in your `sitemap.xml`, you can enable the [`lastUpdated`](../reference/default-theme-last-updated) option.
+
+## Options
+
+Sitemap support is powered by the [`sitemap`](https://www.npmjs.com/package/sitemap) module. You can pass any options supported by it to the `sitemap` option in your config file. These will be passed directly to the `SitemapStream` constructor. Refer to the [`sitemap` documentation](https://www.npmjs.com/package/sitemap#options-you-can-pass) for more details. Example:
+
+```ts
+import { defineConfig } from 'vitepress'
+
+export default defineConfig({
+  sitemap: {
+    hostname: 'https://example.com',
+    lastmodDateOnly: false
+  }
+})
+```
+
+## `transformItems` Hook
+
+You can use the `sitemap.transformItems` hook to modify the sitemap items before they are written to the `sitemap.xml` file. This hook is called with an array of sitemap items and expects an array of sitemap items to be returned. Example:
+
+```ts
+import { defineConfig } from 'vitepress'
+
+export default defineConfig({
+  sitemap: {
+    hostname: 'https://example.com',
+    transformItems: (items) => {
+      // add new items or modify/filter existing items
+      items.push({
+        url: '/extra-page',
+        changefreq: 'monthly',
+        priority: 0.8
+      })
+      return items
+    }
+  }
+})
+```