北大青鸟 S1 MyQQ项目 附加功能
///
classDBHelper
{
privatestaticstringconnString=@"DataSource=.;InitialCatalog=MyQQ;UserID=sa;Pwd=sa";
publicstaticSqlConnectionconnection=newSqlConnection(connString);
publicstaticvoidOpen()
{
connection.Open();
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