qt編程中QSqlquery對象作為一個類的成員如何初始化？

//自己設置連接名，不使用默認連接名

if (SdbSqlite.contains("Conn2sqlite"))

{

SdbSqlite = QSqldatabase::database("Conn2sqlite");

}

else

{

SdbSqlite = QSqlDatabase::addDatabase(

"QSQLITE","Conn2sqlite");

}

SdbSqlite.setDatabaseName("FiveChess.database"); //數據庫名稱

定義QSqlDatabase SdbSqlite;并連接sqlite數據庫

QString StrSql1 =

QString("select name,grade,integration,round,victory,defeat,rank"

" from member where account = '%0' and password = '%1';")

.arg(StrAcn,StrPsdOrNew);

QSqlQuery query1(SdbSqlite);

query1.exec(StrSql1);

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