1 import sys 2 from PyQt5.QtWidgets import * 3 from PyQt5.QtGui import * 4 from PyQt5.QtCore import * 5 ################################################ 6 items_list=["C","C++","Java","Python","JavaScript","C#","Swift","go","Ruby","Lua","PHP"] 7 datas_list=[1972,1983,1995,1991,1992,2000,2014,2009,1995,1993,1995] 8 9 class Widget(QWidget): 10 def __init__(self, *args, **kwargs): 11 super(Widget, self).__init__(*args, **kwargs) 12 layout = QVBoxLayout(self) 13 self.combobox1 = QComboBox(self, minimumWidth=200) 14 self.combobox2 = QComboBox(self, minimumWidth=200) 15 self.combobox3 = QComboBox(self, minimumWidth=200) 16 self.combobox4 = QComboBox(self, minimumWidth=200) 17 18 layout.addWidget(QLabel("增加单项，不带数据", self)) 19 layout.addWidget(self.combobox1) 20 layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)) 21 22 layout.addWidget(QLabel("增加单项，附带数据", self)) 23 layout.addWidget(self.combobox2) 24 layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)) 25 26 layout.addWidget(QLabel("增加多项，不带数据", self)) 27 layout.addWidget(self.combobox3) 28 layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)) 29 30 layout.addWidget(QLabel("设置模型，不带数据", self)) 31 layout.addWidget(self.combobox4) 32 33 #初始化combobox 34 self.init_combobox1() 35 self.init_combobox2() 36 self.init_combobox3() 37 self.init_combobox4() 38 39 #增加选中事件 40 self.combobox1.activated.connect(self.on_combobox1_Activate) 41 self.combobox2.activated.connect(self.on_combobox2_Activate) 42 self.combobox3.activated.connect(self.on_combobox3_Activate) 43 self.combobox4.activated.connect(self.on_combobox4_Activate) 44 45 ####### addItem() 增加单项元素，不带数据 ######### 46 def init_combobox1(self): 47 for i in range(len(items_list)): 48 self.combobox1.addItem(items_list[i]) 49 self.combobox1.setCurrentIndex(-1) 50 51 def on_combobox1_Activate(self, index): 52 print(self.combobox1.count()) #返回列表框下拉项数目 53 print(self.combobox1.currentIndex()) #返回选中项索引 54 print(self.combobox1.currentText()) #返回选中项的文本内容 55 print(self.combobox1.currentData()) #返回当前数据 56 print(self.combobox1.itemData(self.combobox1.currentIndex())) 57 print(self.combobox1.itemText(self.combobox1.currentIndex())) 58 print(self.combobox1.itemText(index)) 59 60 ####### addItem() 增加单项元素，附带数据 ######### 61 def init_combobox2(self): 62 for i in range(len(items_list)): 63 self.combobox2.addItem(items_list[i],datas_list[i]) 64 self.combobox2.setCurrentIndex(-1) 65 66 def on_combobox2_Activate(self, index): 67 print(self.combobox2.count()) 68 print(self.combobox2.currentIndex()) 69 print(self.combobox2.currentText()) 70 print(self.combobox2.currentData()) 71 print(self.combobox2.itemData(self.combobox2.currentIndex())) 72 print(self.combobox2.itemText(self.combobox2.currentIndex())) 73 print(self.combobox2.itemText(index)) 74 75 76 ####### addItems() 增加多项元素，不带数据 ######### 77 def init_combobox3(self): 78 self.combobox3.addItems(items_list) 79 self.combobox3.setCurrentIndex(-1) 80 81 def on_combobox3_Activate(self, index): 82 print(self.combobox3.count()) 83 print(self.combobox3.currentIndex()) 84 print(self.combobox3.currentText()) 85 print(self.combobox3.currentData()) 86 print(self.combobox3.itemData(self.combobox3.currentIndex())) 87 print(self.combobox3.itemText(self.combobox3.currentIndex())) 88 print(self.combobox3.itemText(index)) 89 90 91 92 ####### setModel() 设置数据模型，不带数据 ######### 93 def init_combobox4(self): 94 self.tablemodel = QStringListModel(items_list) 95 self.combobox4.setModel(self.tablemodel) 96 self.combobox4.setCurrentIndex(-1) 97 98 def on_combobox4_Activate(self, index): 99 print(self.combobox4.count()) 100 print(self.combobox4.currentIndex()) 101 print(self.combobox4.currentText()) 102 print(self.combobox4.currentData()) 103 print(self.combobox4.itemData(self.combobox4.currentIndex())) 104 print(self.combobox4.itemText(self.combobox4.currentIndex())) 105 print(self.combobox4.itemText(index)) 106 107 108 if __name__ == "__main__": 109 app = QApplication(sys.argv) 110 w = Widget() 111 w.show() 112 sys.exit(app.exec_())