void BMFilterCase::clear()
{
bmDebug("BMFilterCase::clear");
QList<BMFilterAbstract *> filters = findChildren<BMFilterAbstract *>();
while(filters.count() != 0)
{
children().first()->setParent(NULL);
}
}
这样的代码,能否在BMFilterCase中去掉所有基类为BMFilterAbstract的子对象?