iferr:=db.DB.MysqlDB.DefaultGormDB().Table("group_members").Where("group_id=?",groupId).Where(fmt.Sprintf(" nickname like '%%%s%%' ",userName)).Count(&count).Error;err!=nil{
iferr:=db.DB.MysqlDB.DefaultGormDB().Table("group_members").Where("group_id=?",groupID).Where(fmt.Sprintf(" nickname like '%%%s%%' ",userName)).Count(&count).Error;err!=nil{