PyQt5 - 如何获取 ComboBox 的模型

在本文中，我们将看到如何获得组合框的模型。模型用于设置组合框的项目。为了设置模型，我们将使用setModel方法。如果我们在插入项目之后添加模型，它将清除所有元素，因此应该在任何插入元素之前添加模型。为了得到模型，我们使用model方法。

Syntax : combo_box.model()

Argument : It takes no argument

Return : It returns QStandardItemModel object

编程需要懂一点英语

下面是实现——

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for widgets
    def UiComponents(self):
  
        # creating a combo box widget
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 30)
  
        # geek list
        geek_list = ["Sayian", "Super Saiyan", "Super Sayian 2",
                                               "Super Sayian B"]
  
        # making it editable
        self.combo_box.setEditable(True)
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # creating a model
        model = QtGui.QStandardItemModel(0, 1)
  
        # creating a item
        item = QtGui.QStandardItem("New model")
  
        # adding item to the model
        model.appendRow(item)
  
        # setting model to the combo box
        self.combo_box.setModel(model)
  
        # getting the model
        get_model = self.combo_box.model()
  
        # creating label to show model
        label = QLabel("Model = " + str(get_model), self)
  
        # setting geometry to the label
        label.setGeometry(150, 100, 300, 30)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出：