public static teaching_vod InsertTeachingVod(teaching_vod obj)
{
using (var db = new RescueEntities())
{
return(null);
}
}
//添加教学回放
public static teaching_vod InsertVod(teaching_vod vod)
{
using (var db = new RescueEntities())
{
db.teaching_vod.Add(vod);
db.SaveChanges();
return(vod);
}
}