QVariant转指针或其他非内建数据

1、QVariant转指针

QVariant a;
//do something
QObject* b = (QObject*)a.value<QObject*>();

2、QVariant转其他非内建数据

QVariant a;
//do something
T b = (T)a.value<T>();

T可以是QPoint、QColor等