C#简单连接sql数据库的方法

using System;using System.Collections.Generic;using System.Text;//数据库操作对象库using System.Data;using System.Data.SqlClient;using worddic;namespace testDB{  class Program  {    static void Main(string[] args)    {      //char[] array = new char[2] ;      string [] a = new string[2];      FileOp words = new FileOp();      words.openfile("worddic.txt");      words.getwords(ref a);      /* Console.WriteLine("请输入Data Source：");      string data_source = Console.ReadLine();      Console.WriteLine("请输入Initial Catalog：");      string initial_catalog = Console.ReadLine();      Console.WriteLine("请输入user id：");      string user_id = Console.ReadLine();      Console.WriteLine("请输入pass word：");      string pword = Console.ReadLine();      //连接字符串      string strConn ="Data Source="+data_source+";Initial Catalog="+initial_catalog+";User ID="+user_id+";Password="+pword+"";//YourPwd替换为你设置的sa账户密码      */      string strConn = "Data Source=HYPER-V-WIN2003//SQLSRV2005;Initial Catalog=Mytest;User ID=sa;Password=sa";      SqlConnection conn = null;      SqlCommand sqlCmd = null;      try      {        //创建connection对象        conn = new SqlConnection(strConn);        //打开数据库连接        conn.Open();        //创建Transac Sql命令对象        sqlCmd = conn.CreateCommand();        //创建建表语句        //sqlCmd.CommandText = "create table wordlist(wrongwords varchar(30),rightwords varchar(30),sign char(20),)";        //sqlCmd.ExecuteScalar();        while (a[0] != null) {          sqlCmd.CommandText ="insert into wordlist(wrongwords,rightwords,sign) values('" + a[0] + "','" + a[1] + "',1 )";          sqlCmd.ExecuteScalar();          a[0] = null;          a[1] = null;          words.getwords(ref a);        }        words.fileclose();        Console.WriteLine();        //打印所有记录      }      catch (SqlException e)      {        Console.WriteLine(e.Message);      }      finally      {        conn.Close();      }      Console.WriteLine("程序结束，按任意键退出");      Console.ReadKey();    }  }}