摘要： 说起连接池，我先举个例子吧，　String constr = "Data Source=.;Initial Catalog=Text;User Id=sa;Password=AAA123456"; Stopwatch watch = new Stopwatch(); watch.Start(); for (int i = 0; i < 3000; i++) { using (SqlConnection con = new SqlConnection(constr)) { con.Open(); con.Close(); } } watch.Stop(); Consol 阅读全文