NetCore EF Code Frist

 动态加载模型 的方法

 base.OnModelCreating(builder);
            if (!isLoadModel)
                return;
            if (_ConfigurationInstance == null)
            {
                _ConfigurationInstance = new List<dynamic>();
             var files=   System.IO.Directory.GetFiles(AppContext.BaseDirectory, "*.Model.dll");
                foreach (var dll in files)
                {
                    var typesToRegister = Assembly.LoadFrom(dll).GetTypes().Where(q => q.GetInterface(typeof(IEntityTypeConfiguration<>).FullName) != null);
                    foreach (var type in typesToRegister)
                    {
                        dynamic configurationInstance = Activator.CreateInstance(type);
                        _ConfigurationInstance.Add(configurationInstance);
                        builder.ApplyConfiguration(configurationInstance);
                    }
                }
               
                return;

            }
            foreach (var type in _ConfigurationInstance)
            {
                builder.ApplyConfiguration(type);
            }