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);