运费模板性能优化。区域选择使用懒加载

(cherry picked from commit af2fb4bf5f)

src/api/system/area/index.ts

@@ -1,8 +1,16 @@
 import request from '@/config/axios'
 
 // 获得地区树
-export const getAreaTree = async (id: number) => {
-  return await request.get({ url: '/system/area/tree?id=' + id })
+export const getAreaTree = async () => {
+  return await request.get({ url: '/system/area/tree' })
+}
+
+export const getChildrenArea = async (id: number) => {
+  return await request.get({ url: '/system/area/getChildrenArea?id=' + id })
+}
+
+export const getAreaListByIds = async (data) => {
+  return await request.post({ url: '/system/area/list', data })
 }
 
 // 获得 IP 对应的地区名