[new feature] add DropdownMenu component

docs/markdown/v2-progress-tracking.md

@@ -52,6 +52,7 @@
 ## 新特性
 
 - 新增`Skeleton`骨架屏组件
+- 新增`DropdownMenu`下拉菜单组件
 
 ### ActionSheet
 

docs/src/demo-entry.js

@@ -18,6 +18,7 @@ export default {
   'coupon-list': () => wrapper(import('../../packages/coupon-list/demo'), 'coupon-list'),
   'datetime-picker': () => wrapper(import('../../packages/datetime-picker/demo'), 'datetime-picker'),
   'dialog': () => wrapper(import('../../packages/dialog/demo'), 'dialog'),
+  'dropdown-menu': () => wrapper(import('../../packages/dropdown-menu/demo'), 'dropdown-menu'),
   'field': () => wrapper(import('../../packages/field/demo'), 'field'),
   'goods-action': () => wrapper(import('../../packages/goods-action/demo'), 'goods-action'),
   'icon': () => wrapper(import('../../packages/icon/demo'), 'icon'),

docs/src/doc.config.js

@@ -175,6 +175,10 @@ module.exports = {
                 path: '/dialog',
                 title: 'Dialog 弹出框'
               },
+              {
+                path: '/dropdown-menu',
+                title: 'DropdownMenu 下拉菜单'
+              },
               {
                 path: '/loading',
                 title: 'Loading 加载'
@@ -486,6 +490,10 @@ module.exports = {
                 path: '/dialog',
                 title: 'Dialog'
               },
+              {
+                path: '/dropdown-menu',
+                title: 'DropdownMenu'
+              },
               {
                 path: '/loading',
                 title: 'Loading'

docs/src/docs-entry.js

@@ -43,6 +43,8 @@ export default {
   'datetime-picker.zh-CN': () => import('../../packages/datetime-picker/zh-CN.md'),
   'dialog.en-US': () => import('../../packages/dialog/en-US.md'),
   'dialog.zh-CN': () => import('../../packages/dialog/zh-CN.md'),
+  'dropdown-menu.en-US': () => import('../../packages/dropdown-menu/en-US.md'),
+  'dropdown-menu.zh-CN': () => import('../../packages/dropdown-menu/zh-CN.md'),
   'field.en-US': () => import('../../packages/field/en-US.md'),
   'field.zh-CN': () => import('../../packages/field/zh-CN.md'),
   'goods-action.en-US': () => import('../../packages/goods-action/en-US.md'),