PyQt5下拉式复选框QComboCheckBox的实例

from PyQt5.QtWidgets import QComboBox,QLineEdit,QListWidget,QCheckBox,QListWidgetItem class ComboCheckBox(QComboBox):  def __init__(self,items):#items==[str,str...]    super(ComboCheckBox,self).__init__()    self.items=items    self.qCheckBox=[]    self.qLineEdit=QLineEdit()    self.qLineEdit.setReadOnly(True)    qListWidget=QListWidget()     self.row_num=len(self.items)    for i in range(self.row_num):      self.qCheckBox.append(QCheckBox())      qItem=QListWidgetItem(qListWidget)      self.qCheckBox[i].setText(self.items[i])      qListWidget.setItemWidget(qItem,self.qCheckBox[i])      self.qCheckBox[i].stateChanged.connect(self.show)        self.setLineEdit(self.qLineEdit)         self.setModel(qListWidget.model())    self.setView(qListWidget)   def Selectlist(self):    Outputlist=[]    for i in range(self.row_num):      if self.qCheckBox[i].isChecked()==True:        Outputlist.append(self.qCheckBox[i].text())    return Outputlist   def show(self):    show=''    self.qLineEdit.setReadOnly(False)    self.qLineEdit.clear()    for i in self.Selectlist():      show+=i+';'    self.qLineEdit.setText(show)    self.qLineEdit.setReadOnly(True)from PyQt5.QtWidgets import QComboBox,QLineEdit,QListWidget,QCheckBox,QListWidgetItem class ComboCheckBox(QComboBox):  def __init__(self,items):#items==[str,str...]    super(ComboCheckBox,self).__init__()    self.items=items    self.items.insert(0,'全部')    self.row_num=len(self.items)    self.Selectedrow_num=0    self.qCheckBox=[]    self.qLineEdit=QLineEdit()    self.qLineEdit.setReadOnly(True)    self.qListWidget=QListWidget()    self.addQCheckBox(0)    self.qCheckBox[0].stateChanged.connect(self.All)    for i in range(1,self.row_num):      self.addQCheckBox(i)      self.qCheckBox[i].stateChanged.connect(self.show)    self.setModel(self.qListWidget.model())    self.setView(self.qListWidget)    self.setLineEdit(self.qLineEdit)        def addQCheckBox(self,i):    self.qCheckBox.append(QCheckBox())    qItem=QListWidgetItem(self.qListWidget)    self.qCheckBox[i].setText(self.items[i])    self.qListWidget.setItemWidget(qItem,self.qCheckBox[i])       def Selectlist(self):    Outputlist=[]    for i in range(1,self.row_num):      if self.qCheckBox[i].isChecked()==True:        Outputlist.append(self.qCheckBox[i].text())    self.Selectedrow_num=len(Outputlist)    return Outputlist    def show(self):    show=''    Outputlist=self.Selectlist()    self.qLineEdit.setReadOnly(False)    self.qLineEdit.clear()    for i in Outputlist:      show+=i+';'    if self.Selectedrow_num==0:      self.qCheckBox[0].setCheckState(0)    elif self.Selectedrow_num==self.row_num-1:      self.qCheckBox[0].setCheckState(2)    else:      self.qCheckBox[0].setCheckState(1)    self.qLineEdit.setText(show)    self.qLineEdit.setReadOnly(True)   def All(self,zhuangtai):    if zhuangtai==2:      for i in range(1,self.row_num):        self.qCheckBox[i].setChecked(True)    elif zhuangtai==1:      if self.Selectedrow_num==0:        self.qCheckBox[0].setCheckState(2)    elif zhuangtai==0:      self.clear()   def clear(self):    for i in range(self.row_num):      self.qCheckBox[i].setChecked(False)