QSplitter setStretchFactor 函数的理解

之前在使用QSplitter的时候，对setStretchFactor没怎么理解，找了点资料看来下，顺便记下来

//主分割窗口

QSplitter *splitterMain=new QSplitter(Qt::Horizontal,0);

QTextEdit *textLeft=new QtextEdit(QObject::tr("Left Widget"),splitterMain);

textLeft->setAlignment(Qt::AlignCenter);

QSplitter *splitterRight=new QSplitter(Qt::Vertical,splitterMain);

splitterRight->setOpaqueResize(false);

QTextEdit *textUp=new QtextEdit(QObject::tr("Top Widget"),splitterRight);

textUp->setAlignment(Qt::AlignCenter);

QTextEdit *textBottom=new QtextEdit(QObject::tr("Bottom Widget"),splitterRight);

textBottom->setAlignment(Qt:AlignCenter);

splitterMain->setStretchFactor(1,1);