📄 main.cpp
字号:
/****************************************************************************** $Id: qt/main.cpp 3.1.1 edited Nov 8 10:35 $**** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.**** This file is part of an example program for Qt. This example** program may be used, distributed and modified without limitation.*******************************************************************************/#include <qapplication.h>#include <qsqldatabase.h>#include <qsqlcursor.h>#include "../connection.h"int main( int argc, char *argv[] ){ QApplication app( argc, argv, FALSE ); if ( createConnections() ) { QSqlCursor cur( "prices" ); cur.select( "id=202" ); if ( cur.next() ) { QSqlRecord *buffer = cur.primeUpdate(); double price = buffer->value( "price" ).toDouble(); double newprice = price * 1.05; buffer->setValue( "price", newprice ); cur.update(); } } return 0;}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -