EF分别使用IQueryable和IEnumerable实现更新和删除

缺点 使用IQueryable无法跟踪，无法监控sql,无法使用SaveChanges()。

优点 使用IQueryable简单粗暴。

    class Program
    {
        static void Main(string[] args)
        {
            using (Jason_TestEntities db = new Jason_TestEntities())
            {
                db.Database.Log = Console.Write;
                db.wolf_example.Where(x => x.Num == 20053).UpdateFromQuery<wolf_example>(x=>new wolf_example { Name ="6666"});
                db.wolf_example.Where(x => x.Num == 20056).DeleteFromQuery<wolf_example>();
            }
            Console.WriteLine("------------------------------------------------------------------------------");
            using (Jason_TestEntities db = new Jason_TestEntities())
            {
                db.Database.Log = Console.Write;
                db.wolf_example.SingleOrDefault(x => x.Num == 20036).Name = "777777";
                db.wolf_example.Remove(db.wolf_example.SingleOrDefault(x => x.Num == 20077));
                Console.WriteLine($"次数{db.SaveChanges()}");
            }
            Console.Read();
        }
    }