怎么让图一右下角的三个按钮像图二那么排列呀？

[dym123_dym]

http://www.qtcn.org/bbs/read.php?tid=25077

麻烦点一下，谢谢啦

[huntor]

拖一个Vertical Spacer在下面顶起来。

[szy333]

对，就是用Vertical Spacer放在下面。

[gemfield]

Vertical Spacer

[dym123_dym]

不好意思，我是用代码实现的。

signTranPButn = new QPushButton(QObject::tr("整型数据的有符号和无符号转换"));
extremumPButn = new QPushButton(QObject::tr("极值检测"));
abnormityPbutn = new QPushButton(QObject::tr("异常点剔除"));

QGridLayout *saminterlyr = new QGridLayout(SamplingIntervalSetWgt);

saminterlyr->addLayout(sampinterGLyt,0,0);

signTranPButn->setMinimumWidth(220);
saminterlyr->addWidget(signTranPButn,1,0,1,3,Qt::AlignLeft);
extremumPButn->setMinimumWidth(220);
saminterlyr->addWidget(extremumPButn,2,0,1,3,Qt::AlignLeft);

abnormityPbutn->setMinimumWidth(220);
saminterlyr->addWidget(abnormityPbutn,3,0,1,3,Qt::AlignLeft);

[l5112]