上傳檔案到「pyqt5/CODE/元件使用範例」
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pyqt5/CODE/元件使用範例/qt0407_QLabel.py
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pyqt5/CODE/元件使用範例/qt0407_QLabel.py
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# -*- coding: utf-8 -*-
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'''
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【簡介】
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PyQT5中Qlabel範例
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按住 Alt + N , Alt + P , Alt + O , Alt + C 切換元件控制項
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'''
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from PyQt5.QtWidgets import *
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import sys
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class QlabelDemo(QDialog):
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def __init__(self ):
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super().__init__()
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self.setWindowTitle('Qlabel 範例')
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nameLb1 = QLabel('&Name', self)
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nameEd1 = QLineEdit( self )
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nameLb1.setBuddy(nameEd1)
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nameLb2 = QLabel('&Password', self)
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nameEd2 = QLineEdit( self )
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nameLb2.setBuddy(nameEd2)
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btnOk = QPushButton('&OK')
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btnCancel = QPushButton('&Cancel')
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mainLayout = QGridLayout(self)
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mainLayout.addWidget(nameLb1,0,0)
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mainLayout.addWidget(nameEd1,0,1,1,2)
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mainLayout.addWidget(nameLb2,1,0)
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mainLayout.addWidget(nameEd2,1,1,1,2)
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mainLayout.addWidget(btnOk,2,1)
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mainLayout.addWidget(btnCancel,2,2)
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def link_hovered():
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print("當滑鼠滑過label-2標籤時，觸發事件。")
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def link_clicked():
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print("當滑鼠點擊label-4標籤時，觸發事件。" )
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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labelDemo = QlabelDemo()
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labelDemo.show()
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sys.exit(app.exec_())
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44
pyqt5/CODE/元件使用範例/qt0408_DownloadButton.py
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pyqt5/CODE/元件使用範例/qt0408_DownloadButton.py
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# -*- coding: utf-8 -*-
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'''
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【簡介】
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PyQt5中QButton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 Form(QDialog):
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def __init__(self, parent=None):
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super(Form, self).__init__(parent)
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layout = QVBoxLayout()
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self.btn4= QPushButton("&Download")
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self.btn4.setDefault(True)
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self.btn4.clicked.connect(lambda:self.whichbtn(self.btn4))
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layout.addWidget(self.btn4)
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self.setWindowTitle("Button demo")
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self.setLayout(layout)
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def btnstate(self):
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if self.btn1.isChecked():
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print("button pressed" )
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else:
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print("button released" )
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def whichbtn(self,btn):
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print("clicked button is " + btn.text() )
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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btnDemo = Form()
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btnDemo.show()
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sys.exit(app.exec_())
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58
pyqt5/CODE/元件使用範例/qt0408_QButton.py
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pyqt5/CODE/元件使用範例/qt0408_QButton.py
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# -*- coding: utf-8 -*-
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'''
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【簡介】
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PyQt5中QButton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 Form(QDialog):
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def __init__(self, parent=None):
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super(Form, self).__init__(parent)
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layout = QVBoxLayout()
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self.btn1 = QPushButton("Button1")
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self.btn1.setCheckable(True)
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self.btn1.toggle()
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self.btn1.clicked.connect(lambda:self.whichbtn(self.btn1) )
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self.btn1.clicked.connect(self.btnstate)
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layout.addWidget(self.btn1)
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self.btn2 = QPushButton('image')
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self.btn2.setIcon(QIcon(QPixmap("./images/python.png")))
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self.btn2.clicked.connect(lambda:self.whichbtn(self.btn2) )
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layout.addWidget(self.btn2)
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self.setLayout(layout)
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self.btn3 = QPushButton("Disabled")
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self.btn3.setEnabled(False)
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layout.addWidget(self.btn3)
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self.btn4= QPushButton("&Download")
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self.btn4.setDefault(True)
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self.btn4.clicked.connect(lambda:self.whichbtn(self.btn4))
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layout.addWidget(self.btn4)
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self.setWindowTitle("Button demo")
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def btnstate(self):
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if self.btn1.isChecked():
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print("button pressed" )
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else:
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print("button released" )
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def whichbtn(self,btn):
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print("clicked button is " + btn.text() )
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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btnDemo = Form()
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btnDemo.show()
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sys.exit(app.exec_())
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47
pyqt5/CODE/元件使用範例/qt0409_QRadio.py
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pyqt5/CODE/元件使用範例/qt0409_QRadio.py
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# -*- coding: utf-8 -*-
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'''
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【簡介】
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PyQt5中QRadio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 Radiodemo(QWidget):
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def __init__(self, parent=None):
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super(Radiodemo, self).__init__(parent)
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layout = QHBoxLayout()
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self.btn1 = QRadioButton("Button1")
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self.btn1.setChecked(True)
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self.btn1.toggled.connect(lambda:self.btnstate(self.btn1))
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layout.addWidget(self.btn1)
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self.btn2 = QRadioButton("Button2")
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self.btn2.toggled.connect(lambda:self.btnstate(self.btn2))
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layout.addWidget(self.btn2)
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self.setLayout(layout)
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self.setWindowTitle("RadioButton demo")
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def btnstate(self,btn):
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if btn.text()=="Button1":
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if btn.isChecked() == True:
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print( btn.text() + " is selected" )
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else:
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print( btn.text() + " is deselected" )
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if btn.text()=="Button2":
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if btn.isChecked()== True :
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print( btn.text() + " is selected" )
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else:
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print( btn.text() + " is deselected" )
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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radioDemo = Radiodemo()
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radioDemo.show()
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sys.exit(app.exec_())
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pyqt5/CODE/元件使用範例/qt0410_QCheckbox.py
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pyqt5/CODE/元件使用範例/qt0410_QCheckbox.py
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# -*- coding: utf-8 -*-
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'''
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【簡介】
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PyQt5中QCheckBox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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from PyQt5.QtCore import Qt
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class CheckBoxDemo(QWidget):
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def __init__(self, parent=None):
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super(CheckBoxDemo , self).__init__(parent)
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groupBox = QGroupBox("Checkboxes")
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groupBox.setFlat( False )
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layout = QHBoxLayout()
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self.checkBox1= QCheckBox("&Checkbox1")
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self.checkBox1.setChecked(True)
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self.checkBox1.stateChanged.connect( lambda:self.btnstate(self.checkBox1) )
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layout.addWidget(self.checkBox1)
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self.checkBox2 = QCheckBox("Checkbox2")
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self.checkBox2.toggled.connect( lambda:self.btnstate(self.checkBox2) )
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layout.addWidget(self.checkBox2)
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self.checkBox3 = QCheckBox("tristateBox")
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self.checkBox3.setTristate(True)
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self.checkBox3.setCheckState(Qt.PartiallyChecked )
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self.checkBox3.stateChanged.connect( lambda:self.btnstate(self.checkBox3) )
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layout.addWidget(self.checkBox3)
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groupBox.setLayout(layout)
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mainLayout = QVBoxLayout()
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mainLayout.addWidget(groupBox)
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self.setLayout(mainLayout)
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self.setWindowTitle("checkbox demo")
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def btnstate(self,btn ):
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chk1Status = self.checkBox1.text()+", isChecked="+ str( self.checkBox1.isChecked() ) + ', chekState=' + str(self.checkBox1.checkState()) +"\n"
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chk2Status = self.checkBox2.text()+", isChecked="+ str( self.checkBox2.isChecked() ) + ', checkState=' + str(self.checkBox2.checkState()) +"\n"
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chk3Status = self.checkBox3.text()+", isChecked="+ str( self.checkBox3.isChecked() ) + ', checkState=' + str(self.checkBox3.checkState()) +"\n"
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print(chk1Status + chk2Status + chk3Status )
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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checkboxDemo = CheckBoxDemo()
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checkboxDemo.show()
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sys.exit(app.exec_())
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