试试这个代码，这是我在我的项目中使用的东西
import sysfrom PyQt4.QtGui import QComboBox, QApplication, QCompleter, QSortFilterProxyModel, QStandardItemModel, QStandardItemfrom PyQt4.QtCore import Qtclass ExtendedCombo( QComboBox ): def __init__( self, parent = None): super( ExtendedCombo, self ).__init__( parent ) self.setFocusPolicy( Qt.StrongFocus ) self.setEditable( True ) self.completer = QCompleter( self ) # always show all completions self.completer.setCompletionMode( QCompleter.UnfilteredPopupCompletion ) self.pFilterModel = QSortFilterProxyModel( self ) self.pFilterModel.setFilterCaseSensitivity( Qt.CaseInsensitive ) self.completer.setPopup( self.view() ) self.setCompleter( self.completer ) self.lineEdit().textEdited[unipre].connect( self.pFilterModel.setFilterFixedString ) self.completer.activated.connect(self.setTextIfCompleterIsClicked) def setModel( self, model ): super(ExtendedCombo, self).setModel( model ) self.pFilterModel.setSourceModel( model ) self.completer.setModel(self.pFilterModel) def setModelColumn( self, column ): self.completer.setCompletionColumn( column ) self.pFilterModel.setFilterKeyColumn( column ) super(ExtendedCombo, self).setModelColumn( column ) def view( self ): return self.completer.popup() def index( self ): return self.currentIndex() def setTextIfCompleterIsClicked(self, text): if text: index = self.findText(text) self.setCurrentIndex(index)if __name__ == "__main__": app = QApplication(sys.argv) model = QStandardItemModel() for i,word in enumerate( ['hola', 'adios', 'hello', 'good bye'] ): item = QStandardItem(word) model.setItem(i, 0, item) combo = ExtendedCombo() combo.setModel(model) combo.setModelColumn(0) combo.show() sys.exit(app.exec_())
