QComboBox 的常规使用方法，在这个使用模板里，基本都有了。
熟悉一下代码，直接就可以用了。
【如下代码，完全复制，直接运行，即可使用】
import sysfrom PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *################################################items_list=["C","C++","Java","Python","JavaScript","C#","Swift","go","Ruby","Lua","PHP"]
datas_list=[1972,1983,1995,1991,1992,2000,2014,2009,1995,1993,1995]################################################class Widget(QWidget):
def __init__(self, *args, **kwargs):
super(Widget, self).__init__(*args, **kwargs)
layout = QVBoxLayout(self)
self.combobox1 = QComboBox(self, minimumWidth=200)
self.combobox2 = QComboBox(self, minimumWidth=200)
self.combobox3 = QComboBox(self, minimumWidth=200)
self.combobox4 = QComboBox(self, minimumWidth=200)
layout.addWidget(QLabel("增加单项，不带数据", self))
layout.addWidget(self.combobox1)
layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum))
layout.addWidget(QLabel("增加单项，附带数据", self))
layout.addWidget(self.combobox2)
layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum))
layout.addWidget(QLabel("增加多项，不带数据", self))
layout.addWidget(self.combobox3)
layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum))
layout.addWidget(QLabel("设置模型，不带数据", self))
layout.addWidget(self.combobox4) #初始化combobox
self.init_combobox1()
self.init_combobox2()
self.init_combobox3()
self.init_combobox4() #增加选中事件
self.combobox1.activated.connect(self.on_combobox1_Activate)
self.combobox2.activated.connect(self.on_combobox2_Activate)
self.combobox3.activated.connect(self.on_combobox3_Activate)
self.combobox4.activated.connect(self.on_combobox4_Activate) ####### addItem() 增加单项元素，不带数据 #########
def init_combobox1(self):
for i in range(len(items_list)):
self.combobox1.addItem(items_list[i])
self.combobox1.setCurrentIndex(-1) def on_combobox1_Activate(self, index):
print(self.combobox1.count())
print(self.combobox1.currentIndex())
print(self.combobox1.currentText())
print(self.combobox1.currentData())
print(self.combobox1.itemData(self.combobox1.currentIndex()))
print(self.combobox1.itemText(self.combobox1.currentIndex()))
print(self.combobox1.itemText(index)) ####### addItem() 增加单项元素，附带数据 #########
def init_combobox2(self):
for i in range(len(items_list)):
self.combobox2.addItem(items_list[i],datas_list[i])
self.combobox2.setCurrentIndex(-1) def on_combobox2_Activate(self, index):
print(self.combobox2.count())
print(self.combobox2.currentIndex())
print(self.combobox2.currentText())
print(self.combobox2.currentData())
print(self.combobox2.itemData(self.combobox2.currentIndex()))
print(self.combobox2.itemText(self.combobox2.currentIndex()))
print(self.combobox2.itemText(index)) ####### addItems() 增加多项元素，不带数据 #########
def init_combobox3(self):
self.combobox3.addItems(items_list)
self.combobox3.setCurrentIndex(-1) def on_combobox3_Activate(self, index):
print(self.combobox3.count())
print(self.combobox3.currentIndex())
print(self.combobox3.currentText())
print(self.combobox3.currentData())
print(self.combobox3.itemData(self.combobox3.currentIndex()))
print(self.combobox3.itemText(self.combobox3.currentIndex()))
print(self.combobox3.itemText(index)) ####### setModel() 设置数据模型，不带数据 #########
def init_combobox4(self):
self.tablemodel = QStringListModel(items_list)
self.combobox4.setModel(self.tablemodel)
self.combobox4.setCurrentIndex(-1) def on_combobox4_Activate(self, index):
print(self.combobox4.count())
print(self.combobox4.currentIndex())
print(self.combobox4.currentText())
print(self.combobox4.currentData())
print(self.combobox4.itemData(self.combobox4.currentIndex()))
print(self.combobox4.itemText(self.combobox4.currentIndex()))
print(self.combobox4.itemText(index))if __name__ == "__main__":
app = QApplication(sys.argv)
w = Widget()
w.show()
sys.exit(app.exec_())
作者：一心狮
链接：https://www.jianshu.com/p/c0a3af18e12a
随时随地看视频
