m_pCustomPlot=new QCustomPlot;
m_pCustomPlot->axisRect()->insetLayout()->setMinimumMargins(QMargins(0, 0, 0, 0));
m_pCustomPlot->axisRect()->setMinimumMargins( QMargins(0, 0, 0, 0) );
m_pCustomPlot=new QCustomPlot;
m_pCustomPlot->axisRect()->insetLayout()->setMinimumMargins(QMargins(0, 0, 0, 0));
m_pCustomPlot->axisRect()->setMinimumMargins( QMargins(0, 0, 0, 0) );