对象池的实际应用SQL Server Connection Pooling (ADO.NET)
.net中的线程池ThreadPool还有和数据库交互的连接池，比如SQL Server Connection Pooling (ADO.NET)https://msdn.microsoft.com/en-us/library/8xx3tyca.aspxSQL Server Connection Pooling (ADO.NET)Connecting to a database...
