QMetaSequence::Iterable::ConstIterator Class
class QMetaSequence::Iterable::ConstIteratorQMetaSequence::Iterable::ConstIterator 允许迭代QVariant 中的容器 ... 更多...
该类在 Qt 6.11 中引入。
公共函数
| QVariant | operator*() const |
| int | operator->() const |
| QVariant | operator[](qsizetype n) const |
详细说明
QMetaSequence::Iterable::ConstIterator 只能由QMetaSequence::Iterable 实例创建,其使用方式与其他 stl 类型的迭代器类似。
QList<int>intList= {7, 11, 42};QVariant变量=QVariant::fromValue(intList);if(variant.canConvert<QVariantList>()) { QMetaSequence::Iterable iterable=variant.value<QMetaSequence::Iterable>();// 可以使用 C++11 range-for: for(constQVariant&v: iterable) { qDebug() << v; }// 可以使用迭代器: QMetaSequence::Iterable::const_iterator it=iterable.begin();constQMetaSequence::Iterable::const_iterator end=iterable.end();for( ; it!=end;++it) { qDebug() << *it; } }
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