ceiwei |
2017-02-09 16:59 |
QModelIndex::QModelIndex()怎么解释?
QModelIndex::QModelIndex() Creates a new empty model index. This type of model index is used to indicate that the position in the model is invalid. See also isValid() and QAbstractItemModel.
是创造一个空的模型索引?被用于指出模型中无效的索引在哪个位置? |
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