如何用qt程序创建sqlite数据库

[weixin_38062043]

如题，对于已存在的数据库利用QSqlquery进行相应的sql语句的操作有很多例子，但是在数据库文件（比如database.db）不存在的情形下，如何用代码创建一个数据库，求解答，谢谢！

[weixin_38073737]

thanks,问题解决了

[weixin_38066880]

复制代码    QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");    //    db.setDatabaseName(":memory:");    db.setDatabaseName("xxxx.db");    if (!db.open()) {        QMessageBox::critical(0, tr("Cannot open database"),                              tr("Unable to establish a database connection.\n"                                 "This example needs SQLite support. Please read "                                 "the Qt SQL driver documentation for information how "                                 "to build it."), QMessageBox::Cancel);        return;    }    QSqlQuery query;    query.exec("DROP TABLE IF EXISTS [xxxx];");    query.exec("CREATE TABLE [xxxx] ( \               [xxxx] INTEGER  PRIMARY KEY AUTOINCREMENT NOT NULL,\               [xxxx] INTEGER  NOT NULL,\               [xxxx] DOUBLE  NOT NULL,\               [xxxx] DOUBLE  NOT NULL\               );");    db.close();