docs: add more intro (#7282)

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neverland
2020-09-29 20:56:43 +08:00
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commit 04dca5f39d
4 changed files with 13 additions and 1 deletions
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@@ -1,5 +1,9 @@
# DropdownMenu 下拉菜单
### 介绍
向下弹出的菜单列表。
### 引入
```js