using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data.SqlClient; using System.Data; namespace ConsoleApplication4 { class Program { static void Main(string[] args) { //sqlserver身份验证 //string sqlconn = "server=(local);database=keede1228;user id=sa;password=123;"; //windows身份验证 string sqlconn = "server=(local);database=keede1228;integrated security=SSPI;"; string select = "dirr4"; SqlConnection conn = new SqlConnection(sqlconn); Console.WriteLine("33"); conn.Open(); Console.WriteLine("11"); //SqlCommand cmd = new SqlCommand(select, conn); //SqlDataReader reader = cmd.ExecuteReader(); //while (reader.Read())