docs: improve button dropdown demo

components/button/__tests__/__snapshots__/demo.test.ts.snap

@@ -976,34 +976,43 @@ Array [
       secondary
     </span>
   </button>,
-  <button
-    class="ant-btn ant-dropdown-trigger"
-    type="button"
+  <div
+    class="ant-btn-group ant-dropdown-button"
   >
-    <span>
-      Actions 
-    </span>
-    <span
-      aria-label="down"
-      class="anticon anticon-down"
-      role="img"
+    <button
+      class="ant-btn ant-btn-default"
+      type="button"
     >
-      <svg
-        aria-hidden="true"
-        class=""
-        data-icon="down"
-        fill="currentColor"
-        focusable="false"
-        height="1em"
-        viewBox="64 64 896 896"
-        width="1em"
+      <span>
+        Actions
+      </span>
+    </button>
+    <button
+      class="ant-btn ant-btn-default ant-btn-icon-only ant-dropdown-trigger"
+      type="button"
+    >
+      <span
+        aria-label="ellipsis"
+        class="anticon anticon-ellipsis"
+        role="img"
       >
-        <path
-          d="M884 256h-75c-5.1 0-9.9 2.5-12.9 6.6L512 654.2 227.9 262.6c-3-4.1-7.8-6.6-12.9-6.6h-75c-6.5 0-10.3 7.4-6.5 12.7l352.6 486.1c12.8 17.6 39 17.6 51.7 0l352.6-486.1c3.9-5.3.1-12.7-6.4-12.7z"
-        />
-      </svg>
-    </span>
-  </button>,
+        <svg
+          aria-hidden="true"
+          class=""
+          data-icon="ellipsis"
+          fill="currentColor"
+          focusable="false"
+          height="1em"
+          viewBox="64 64 896 896"
+          width="1em"
+        >
+          <path
+            d="M176 511a56 56 0 10112 0 56 56 0 10-112 0zm280 0a56 56 0 10112 0 56 56 0 10-112 0zm280 0a56 56 0 10112 0 56 56 0 10-112 0z"
+          />
+        </svg>
+      </span>
+    </button>
+  </div>,
 ]
 `;
 

components/button/demo/multiple.md

@@ -7,15 +7,14 @@ title:
 
 ## zh-CN
 
-按钮组合使用时，推荐使用 1 个主操作 + n 个次操作，3 个以上操作时把更多操作放到 `Dropdown.Button` 中组合使用。
+按钮组合使用时，推荐使用 1 个主操作 + n 个次操作，3 个以上操作时把更多操作放到 [Dropdown.Button](/components/dropdown/#components-dropdown-demo-dropdown-button) 中组合使用。
 
 ## en-US
 
-If you need several buttons, we recommend that you use 1 primary button + n secondary buttons, and if there are more than three operations, you can group some of them into `Dropdown.Button`.
+If you need several buttons, we recommend that you use 1 primary button + n secondary buttons, and if there are more than three operations, you can group some of them into [Dropdown.Button](/components/dropdown/#components-dropdown-demo-dropdown-button).
 
 ```jsx
 import { Button, Menu, Dropdown } from 'antd';
-import { DownOutlined } from '@ant-design/icons';
 
 function handleMenuClick(e) {
   console.log('click', e);
@@ -33,11 +32,7 @@ ReactDOM.render(
   <>
     <Button type="primary">primary</Button>
     <Button>secondary</Button>
-    <Dropdown overlay={menu}>
-      <Button>
-        Actions <DownOutlined />
-      </Button>
-    </Dropdown>
+    <Dropdown.Button overlay={menu}>Actions</Dropdown.Button>
   </>,
   mountNode,
 );