逛奔的蝸牛

#include <QtCore/QCoreApplication>

#include <QtSql>

#include <qDebug>

int main(int argc, char *argv[]) {

    QCoreApplication a(argc, argv);

    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("utf8"));

    QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE"); 

    db.setDatabaseName("MyDB"); // 數(shù)據(jù)庫名與路徑, 此時是放在同目錄下

    db.open(); // 連接數(shù)據(jù)庫, 然后就可以使用了.

    QSqlQuery query;

    //    query.prepare("insert into user(id, name) values(:id, :name)");

    //    query.bindValue(":id", 2);

    //    query.bindValue(":name", "黃彪");

    //    bool ok = query.exec();

    //

    //    query.prepare("insert into user(id, name) values(:id, :name)");

    //    query.bindValue(":id", 3);

    //    query.bindValue(":name", "阿跑");

    //    query.exec();

    //

    //    if (!ok) {

    //        qDebug() << "Already exits.";

    //    }

    //

    //    query.exec("create table hello(id int primary key)");

    query.exec("select * from user");

    while (query.next()) {

        int id = query.value(0).toInt();

        QString name = query.value(1).toString();

        qDebug() << "Id=" << id << ", Name=" << name;

    }

    return 0;

}