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public class databaseUntil
{
    private OracleCommand cmd = null;
    private OracleConnection conn = null;
    private string connstr;//´ÓÊý¾Ý¿âÖжÁÈ¡µÄÁ¬½ÓÓï¾ä

public databaseUntil()
{
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        connstr = ConfigurationManager.ConnectionStrings["oracleConnString"].ConnectionString;
}

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    public OracleConnection init()
    {
        try
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            conn = new OracleConnection(connstr);
            if (conn.State != ConnectionState.Open)
            {
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