代码生成：增加 tree 树形的示例

src/api/infra/demo/demo02/index.ts

@@ -0,0 +1,37 @@
+import request from '@/config/axios'
+
+export interface Demo02CategoryVO {
+  id: number
+  name: string
+  parentId: number
+}
+
+// 查询示例分类列表
+export const getDemo02CategoryList = async (params) => {
+  return await request.get({ url: `/infra/demo02-category/list`, params })
+}
+
+// 查询示例分类详情
+export const getDemo02Category = async (id: number) => {
+  return await request.get({ url: `/infra/demo02-category/get?id=` + id })
+}
+
+// 新增示例分类
+export const createDemo02Category = async (data: Demo02CategoryVO) => {
+  return await request.post({ url: `/infra/demo02-category/create`, data })
+}
+
+// 修改示例分类
+export const updateDemo02Category = async (data: Demo02CategoryVO) => {
+  return await request.put({ url: `/infra/demo02-category/update`, data })
+}
+
+// 删除示例分类
+export const deleteDemo02Category = async (id: number) => {
+  return await request.delete({ url: `/infra/demo02-category/delete?id=` + id })
+}
+
+// 导出示例分类 Excel
+export const exportDemo02Category = async (params) => {
+  return await request.download({ url: `/infra/demo02-category/export-excel`, params })
+}