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_())
