Qt4.8(4.8.6)有一个带有5个参数的QPainter::drawPixmapFragments()重载函数:voiddrawPixmapFragments(constQRectF*targetRects,constQRectF*sourceRects,intfragmentCount,constQPixmap&pixmap,PixmapFragmentHintshints=0);Qt5(5.4.1)没有这样的函数，它只有一个(与Qt4.8相同)有4个参数:voiddrawPixmapFragments(constPixmapFragment*fragments,intfragm