python - Pyqt5:QtableWidgetItem "None"

Question

我在 PyQt5 中创建了一个表，并通过此方法检索单元格中的数据。但是当我尝试 QTableWidgetItem 中的单元格变为 None 时。那么，我如何解决这个问题以及如何在特定单元格中插入其他确定的项目，例如项目 2、项目 3...谢谢

import sys
from PyQt5.QtWidgets import (QWidget, QTableWidget, QHBoxLayout, QApplication, QTableWidgetItem)
from PyQt5.QtGui import QBrush, QColor 
from PyQt5 import QtCore

data = {'111':['Title 1','121','94565','','','','684651','','','44651','','',''], '112':['Title 2','65115','','466149','46645','555641','','','','412045','98416','',''], '113':['Title 3','','','','466149','46645','555641','98656','','','412045','98416','','']} 

class Table(QWidget):
    def __init__(self, *args, parent=None):
        super().__init__()
        self.data = data
        self.setuptUI()
        k = 'str'
        v = int
        n = int
        m = int
        self.setdata(k, v, n, m)

def setuptUI(self):
  self.setWindowTitle("QTableWidgetItem")
                self.resize(1200, 800)
                conLayout = QHBoxLayout()
    self.tableWidget =QTableWidget(self)
    self.tableWidget.setRowCount(55)
    self.tableWidget.setColumnCount(14)
    conLayout.addWidget(self.tableWidget)

def setdata(self, k, v, n, m):
    global item
    item = str(self.data.get(k))
    for key in self.data:
        if k in key:
            item = self.data.get(k)[v]
            print(item)
    newItem = QTableWidgetItem(str(item))
    newItem.setForeground(QBrush(QColor(255, 0, 0)))
    self.tableWidget.setItem(23, 4, newItem)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    windows = Table(data)
    item1= Table()
    item1.setdata(k="113", v=5, n=24, m=4)
    #item2= Table()
    #item2.setdata(k="113", v=5, n=25, m=4
    windows.show()
    sys.exit(app.exec_())

Answer 1

尝试一下:

import sys
from PyQt5.QtWidgets import (QWidget, QTableWidget, QHBoxLayout, QApplication, QTableWidgetItem)
from PyQt5.QtGui import QBrush, QColor 
from PyQt5 import QtCore

data = {'111':['Title 1','121','94565','','','','684651','','','44651','','',''], 
        '112':['Title 2','65115','','466149','46645','555641','','','','412045','98416','',''], 
        '113':['Title 3','','','','466149','46645','555641','98656','','','412045','98416','','']} 

class Table(QWidget):
    def __init__(self, data):                              # data
        super().__init__()
        self.data = data
        self.setuptUI()

#        k = 'str'
#        v = int
#        n = int
#        m = int
#        self.setdata(k, v, n, m)

    def setuptUI(self):
        self.setWindowTitle("QTableWidgetItem")
        self.resize(1200, 600)

        conLayout        = QHBoxLayout(self)                 # + self
        self.tableWidget = QTableWidget(self)
        self.tableWidget.setRowCount(55)
        self.tableWidget.setColumnCount(14)
        conLayout.addWidget(self.tableWidget)

    def setdata(self, k, v, n, m):
#        global item                                          # ---
#        item = str(self.data.get(k))
#        for key in self.data:
#            if k in key:
        item = self.data.get(k)[v]
        print(item)

        newItem = QTableWidgetItem(str(item))
        newItem.setForeground(QBrush(QColor(255, 0, 0)))
#        self.tableWidget.setItem(23, 4, newItem)
        self.tableWidget.setItem(n, m, newItem)

if __name__ == '__main__':
    app = QApplication(sys.argv)

    windows = Table(data)
#-    item1= Table()
#-    item1.setdata(k="113", v=5, n=24, m=4)
    windows.setdata(k="113", v=5, n=24, m=4)
    windows.setdata(k="113", v=6, n=24, m=5)         #  v=6, m=5

    windows.show()
    sys.exit(app.exec_())