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邮局订报系统数据库
class SqlHelper
{
private SqlConnection conn = null;
private SqlCommand cmd = null;
private SqlDataReader sdr=null;
public SqlHelper()
{
string connStr = @"Data Source=.;Initial Catalog=NewsPaperSystem;Integrated Security=True";
conn = new SqlConnection(connStr);
}
private SqlConnection GetConn()
{
if (conn.State == ConnectionState.Closed)
{
conn.Open();
}
return conn;
2015-06-25
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