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using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
namespace SQL_work
{
    class DataConn
    {
        public static SqlConnection My_con;  //¶¨ÒåÒ»¸öSqlConnectionÀàÐ͵Ĺ«¹²±äÁ¿My_con£¬ÓÃÓÚÅжÏÊý¾Ý¿âÊÇ·ñÁ¬½Ó³É¹¦
        public static string M_str_sqlcon = @"Data Source=¼ÆËã»úÃû\SQLEXPRESS;Initial Catalog=db_work3;Integrated Security=True;Pooling=False";
      
        #region  ½¨Á¢Êý¾Ý¿âÁ¬½Ó
        /// <summary>
        /// ½¨Á¢Êý¾Ý¿âÁ¬½Ó.
        /// </summary>
        /// <returns>·µ»ØSqlConnection¶ÔÏó</returns>
        public static SqlConnection getcon()
        {
            My_con = new SqlConnection(M_str_sqlcon);   //ÓÃSqlConnection¶ÔÏóÓëÖ¸¶¨µÄÊý¾Ý¿â


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