1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Data.SqlClient;
 5using System.Data.OleDb;
 6//该源码下载自www.51aspx.com(５１aｓpｘ．ｃｏｍ)
 7
 8//数据库链接类
 9public class ConDB
10...{
11    public ConDB()
12    ...{
13        
14        // TODO: 在此处添加构造函数逻辑
15        //
16    }
17
18    //public static SqlConnection getConnection(int i)
19    //{
20    //    return new SqlConnection(ConfigurationManager.ConnectionStrings["blogConnectionString"].ConnectionString);
21    //}
22
23    public static SqlConnection getConnection()//定义成静态的，很重要！
24    ...{
25        return new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
26    }
27}
28