| 头: | #include <QVariantConstPointer> | 
| CMake: | find_package(Qt6 COMPONENTS Core REQUIRED) target_link_libraries(mytarget PRIVATE Qt6::Core) | 
| qmake: | QT += core | 
| Since: | Qt 6.0 | 
| QVariantConstPointer (QVariant variant ) | |
| QVariant | operator* () const | 
| const QVariant * | operator-> () const | 
QVariantConstPointer wraps a QVariant and returns it from its operator*(). This makes it suitable as replacement for an actual const pointer. We cannot return an actual const pointer from generic iterators as the iterators don't hold an actual QVariant .
Constructs a QVariantConstPointer from a variant .
解引用 QVariantConstPointer to retrieve its internal QVariant .
Returns a const pointer to the QVariant , conforming to the conventions for operator->().