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                # QTreeWidgetItemIterator Class Reference ## [[QtGui](index.htm) module] 該QTreeWidgetItemIterator類提供了一種方法來遍歷一個項目[QTreeWidget](qtreewidget.html)實例。[More...](#details) ### Types * `enum IteratorFlag { All, Hidden, NotHidden, Selected, ..., UserFlag }` * `class **[IteratorFlags](index.htm)**` ### Methods * `__init__ (self, QTreeWidgetItemIterator?it)` * `__init__ (self, QTreeWidget?widget, IteratorFlags?flags?=?QTreeWidgetItemIterator.All)` * `__init__ (self, QTreeWidgetItem?item, IteratorFlags?flags?=?QTreeWidgetItemIterator.All)` * `QTreeWidgetItem value (self)` ### Special Methods * `QTreeWidgetItemIterator __iadd__ (self, int?n)` * `QTreeWidgetItemIterator __isub__ (self, int?n)` * * * ## Detailed Description 該QTreeWidgetItemIterator類提供了一種方法來遍歷一個項目[QTreeWidget](qtreewidget.html)實例。 迭代器都將走在一個前序遍歷順序選擇項目,從而訪問父節點_before_它繼續到子節點。 例如,下面的代碼示例每個項目在樹上,檢查中對用戶指定的搜索字符串的第一個列中的文本: ``` QTreeWidgetItemIterator it(treeWidget); while (*it) { if ((*it)->text(0) == itemText) (*it)->setSelected(true); ++it; } ``` 另外,也可以通過將某些過濾掉某些類型的節點的[flags](qtreewidgetitemiterator.html#IteratorFlag-enum)到QTreeWidgetItemIterator的構造函數。 * * * ## Type Documentation ``` QTreeWidgetItemIterator.IteratorFlag ``` 這些標志可以被傳遞給一個[QTreeWidgetItemIterator](qtreewidgetitemiterator.html)構造函數(或 - 編在一起,如果超過一個時) ,從而使迭代器將只遍歷匹配給定的標志,物品。 | Constant | Value | | --- | --- | | `QTreeWidgetItemIterator.All` | `0x00000000` | | `QTreeWidgetItemIterator.Hidden` | `0x00000001` | | `QTreeWidgetItemIterator.NotHidden` | `0x00000002` | | `QTreeWidgetItemIterator.Selected` | `0x00000004` | | `QTreeWidgetItemIterator.Unselected` | `0x00000008` | | `QTreeWidgetItemIterator.Selectable` | `0x00000010` | | `QTreeWidgetItemIterator.NotSelectable` | `0x00000020` | | `QTreeWidgetItemIterator.DragEnabled` | `0x00000040` | | `QTreeWidgetItemIterator.DragDisabled` | `0x00000080` | | `QTreeWidgetItemIterator.DropEnabled` | `0x00000100` | | `QTreeWidgetItemIterator.DropDisabled` | `0x00000200` | | `QTreeWidgetItemIterator.HasChildren` | `0x00000400` | | `QTreeWidgetItemIterator.NoChildren` | `0x00000800` | | `QTreeWidgetItemIterator.Checked` | `0x00001000` | | `QTreeWidgetItemIterator.NotChecked` | `0x00002000` | | `QTreeWidgetItemIterator.Enabled` | `0x00004000` | | `QTreeWidgetItemIterator.Disabled` | `0x00008000` | | `QTreeWidgetItemIterator.Editable` | `0x00010000` | | `QTreeWidgetItemIterator.NotEditable` | `0x00020000` | | `QTreeWidgetItemIterator.UserFlag` | `0x01000000` | 該IteratorFlags類型是一個typedef為[QFlags](index.htm)\u003cIteratorFlag\u003e 。它存儲IteratorFlag值的或組合。 * * * ## Method Documentation ``` QTreeWidgetItemIterator.__init__ (self, QTreeWidgetItemIterator?it) ``` 構造一個迭代器相同[QTreeWidget](qtreewidget.html)如_it_。當前迭代項設置為點上的當前項目_it_。 ``` QTreeWidgetItemIterator.__init__ (self, QTreeWidget?widget, IteratorFlags?flags?=?QTreeWidgetItemIterator.All) ``` 構造一個迭代器對給定的_widget_使用指定的_flags_以確定哪些迭代過程中發現的項目。迭代器被設置為指向包含在插件的第一個頂級項目,或下一個匹配的項目,如果在最上層的項目不匹配的標志。 **See also** [QTreeWidgetItemIterator.IteratorFlag](qtreewidgetitemiterator.html#IteratorFlag-enum)。 ``` QTreeWidgetItemIterator.__init__ (self, QTreeWidgetItem?item, IteratorFlags?flags?=?QTreeWidgetItemIterator.All) ``` 構造一個迭代器對給定的_item_使用指定的_flags_以確定哪些迭代過程中發現的項目。迭代器被設置為指向_item_,或下一個匹配的項目,如果_item_不匹配的標志。 **See also** [QTreeWidgetItemIterator.IteratorFlag](qtreewidgetitemiterator.html#IteratorFlag-enum)。 ``` QTreeWidgetItem QTreeWidgetItemIterator.value (self) ``` [](qtreewidgetitem.html) ``` QTreeWidgetItemIterator QTreeWidgetItemIterator.__iadd__ (self, int?n) ``` [](qtreewidgetitemiterator.html) ``` QTreeWidgetItemIterator QTreeWidgetItemIterator.__isub__ (self, int?n) ``` [](qtreewidgetitemiterator.html)
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                              哎呀哎呀视频在线观看