命名空间：
写文本文件
StreamWriter sw=File.CreateText("c:\\text.txt"); sw.WriteLine("C#"); //写入一行文本 sw.Write("mandType.Text; OracleParameter paramFileName = cmd.CreateParameter(); paramFileName.OracleType = OracleType.VarChar; paramFileName.ParameterName = "FileName"; paramFileName.Direction = ParameterDirection.Input; paramFileName.Value = fileName; cmd.Parameters.Add(paramFileName); conn.Open(); OracleDataReader dr = cmd.ExecuteReader(); dr.Read(); byte[] buffer = (byte[])dr["file_content"]; dr.Close(); conn.Close(); //把文件保存到指定路径 File.WriteAllBytes(savePath, buffer); }
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