这里有一个简单的方法来获取 listWidget 中的所有 ListWidgetItem.

Here is a easy way to get all ListWidgetItems in a listWidget.

lw = QtGui.QListWidget()
# let lw haven elements in it.
items = []
for x in range(lw.count()-1):
    items.append(lw.item(x))

#items will consist a list of ListWidgetItems.