用户管理系统 角色 添加分组/ role / group / create [put] 删除分组/ role / group / delete [删除] 添加角色/ role / create [put] 修改角色/ role / modify [发布] 删除角色/ role / delete [删除] 组内添加角色/ role / group / add [发布] 组内删除角色/ role / group / remove [post] 关联权限/ role / permission / ad