46 lines
1.1 KiB
Python
46 lines
1.1 KiB
Python
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# -*- coding: utf-8 -*-
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'''
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【簡介】
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PyQt5中QComboBox範例
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'''
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import sys
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from PyQt5.QtCore import *
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from PyQt5.QtGui import *
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from PyQt5.QtWidgets import *
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class ComboxDemo(QWidget):
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def __init__(self, parent=None):
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super(ComboxDemo, self).__init__(parent)
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self.setWindowTitle("combox 範例")
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self.resize(300, 90)
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layout = QVBoxLayout()
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self.lbl = QLabel("" )
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self.cb = QComboBox()
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self.cb.addItem("C")
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self.cb.addItem("C++")
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self.cb.addItems(["Java", "C#", "Python"])
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self.cb.currentIndexChanged.connect(self.selectionchange)
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layout.addWidget(self.cb)
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layout.addWidget(self.lbl )
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self.setLayout(layout)
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def selectionchange(self,i):
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self.lbl.setText( self.cb.currentText() )
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self.lbl.adjustSize()
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print( "Items in the list are :" )
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for count in range(self.cb.count()):
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print( 'item'+str(count) + '='+ self.cb.itemText(count) )
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print( "Current index",i,"selection changed ",self.cb.currentText() )
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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comboxDemo = ComboxDemo()
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comboxDemo.show()
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sys.exit(app.exec_())
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