app端：开始上课中，新增预约接口

lisy

2023-08-04 c70c9ecf1bee12e85778dc268308c872b95e477f

 cloud-server-management/src/main/java/com/dsh/course/model/vo/CityRes.java

New file
@@ -0,0 +1,11 @@
package com.dsh.course.model.vo;

import com.dsh.course.entity.City;
import lombok.Data;

import java.util.List;

@Data
public class CityRes {
    List<City> cities;
}