请问如何改变layout中控件在centralwidget中的位置
QHBoxLayout *mainLayout=new QHBoxLayout;
QVBoxLayout *leftLayout=new QVBoxLayout;
setLayout(mainLayout);
startGames=new QPushButton(tr("新游戏"));
startGames->move(30,50);//这句话改成startGames->move(100,200);显示的位置一样
leftLayout->addWidget(startGames);
window.open('http://www.qtcn.org/bbs/attachment/Mon_1105/16_116757_a3c9791d872db9f.jpg?167');" style="max-width:700px;max-height:700px;" onload="if(is_ie6&&this.offsetWidth>700)this.width=700;" >