我有一個QWidget，裏面有一個QTableView。我需要在表格的第一列有查找功能，所以當我點擊Ctrl + F時，會彈出一個查找對話框。在QTableView中搜索/查找功能

class Widget(QWidget):

def __init__(self,md,parent=None):

QWidget.__init__(self,parent)

layout=QVBoxLayout(self)

# initially construct the visible table

tv = QTableView()

# uncomment this if the last column shall cover the rest

tv.horizontalHeader().setStretchLastSection(True)

tv.show()

# set black grid lines

self.setStyleSheet("gridline-color: rgb(39, 42, 49)")

# construct the Qt model belonging to the visible table

model = NvmQtModel(md)

tv.setModel(model)

tv.resizeRowsToContents()

tv.resizeColumnsToContents()

# set the shortcut ctrl+F for find in menu

shortcut = QShortcut(QKeySequence('Ctrl+f'), self)

shortcut.activated.connect(self.handleFind)

# delegate for decimal

delegate = NvmDelegate()

tv.setItemDelegate(delegate)

self.setGeometry(200,200,600,600) # adjust this later

layout.addWidget(tv)

# set window title

self.setWindowTitle("TITLE")

# shows and handles the find dialog

def handleFind(self):

findDialog = QDialog()

grid = QGridLayout()

findDialog.setLayout(grid)

findLabel = QLabel("Find what", findDialog)

grid.addWidget(findLabel,1,0)

findField = QLineEdit(findDialog)

grid.addWidget(findField,1,1)

findButton = QPushButton("Find", findDialog)

findButton.clicked.connect(self.find)

grid.addWidget(findButton,2,1)

findDialog.exec_()

# find function: search in the first column of the table

def find(self):

#to do

# prevent closing the window without confirmation

def closeEvent(self, event):

reply=QMessageBox.question(self,'Message',"Are you sure to quit?",QMessageBox.Yes|QMessageBox.No,QMessageBox.No)

if reply==QMessageBox.Yes:

event.accept()

else:

event.ignore()

# create the application and the new tree view container

app=QApplication(sys.argv)

wid=Widget(md)

wid.show()

wid.raise_()

我在findButton操作中遇到了問題，它應該在表的第一列中進行搜索。如果你在這個問題上指導我，我將不勝感激。