连接字符串

[MAIN]

?????????? string dataDir = AppDomain.CurrentDomain.BaseDirectory;
??????????? if (dataDir.EndsWith(@"\bin\Debug\") || dataDir.EndsWith(@"\bin\Release\"))
??????????? {
??????????????? dataDir = System.IO.Directory.GetParent(dataDir).Parent.Parent.FullName;
??????????????? AppDomain.CurrentDomain.SetData("DataDirectory", dataDir);
??????????? }

[SQL SERVER]

??????????? SqlConnection conn = new?SqlConnection?(@"Data????Source=.\SQLEXPRESS;AttachDBFilename=|DataDirectory|\Database1.mdf;
??????????????? Integrated Security=True;User Instance=True");
??????????? conn.Open();

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[ORACLE]

?????????? OracleConnection conn = new OracleConnection(
???????????????????????????????????? @"User Id=scott;Password=tiger;Data Source=myfirst");
?????????? conn.Open();

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