public static void EnsureSendData(this LifeDbContext context)
        {
            if (context.Teams.Any() || context.Users.Any())
            {
                return;   // 已经初始化过数据,直接返回
            }
            Guid teamId = Guid.NewGuid();

            context.Teams.Add(new Team
            {
                Id         = teamId,
                TeamName   = "603",
                TotalMoney = 100,
            });
            List <User> users = new List <User>
            {
                new User
                {
                    Id       = new Guid(),
                    UserName = "******",
                    PassWord = EncryptionMD5.Get32MD5One("123456"),
                    NickName = "柳一雄",
                    TeamId   = teamId
                },
                new User
                {
                    Id       = new Guid(),
                    UserName = "******",
                    PassWord = EncryptionMD5.Get32MD5One("123456"),
                    NickName = "胡秋彦",
                    TeamId   = teamId
                },
                new User
                {
                    Id       = new Guid(),
                    UserName = "******",
                    PassWord = EncryptionMD5.Get32MD5One("654321"),
                    NickName = "陈敏航",
                    TeamId   = teamId
                },
                new User
                {
                    Id       = new Guid(),
                    UserName = "******",
                    PassWord = EncryptionMD5.Get32MD5One("123456"),
                    NickName = "邹立杰",
                    TeamId   = teamId
                },
                new User
                {
                    Id       = new Guid(),
                    UserName = "******",
                    PassWord = EncryptionMD5.Get32MD5One("ffg123"),
                    NickName = "翁超群",
                    TeamId   = teamId
                }
            };

            context.Users.AddRange(users);
            context.SaveChanges();
        }