如何使用 Pandas 将 QTableWidget 数据导出到 Excel?

How to export QTableWidget data to Excel using Pandas?

我正在尝试将数据从 QTableWidget 传递到 Excel。为什么在Excel中只写了table的最后一行? (在打印中,显示了完整的 table)。

rowCount = self.QTableWidget.rowCount()
columnCount = 5

for row in range(rowCount):
    rowData = []
    for column in range(columnCount):
        widgetItem = self.QTableWidget.item(row, column)
        if widgetItem and widgetItem.text:
            rowData.append(widgetItem.text())
        else:
            rowData.append('NULL')
    print(rowData)

df = pd.DataFrame(columns=rowData)
df.to_excel('Table.xlsx', index=False)

您需要创建一个列表列表来保存所有行:

rowCount = self.QTableWidget.rowCount()
columnCount = 5

# add this line
data = []

for row in range(rowCount):
    rowData = []
    for column in range(columnCount):
        widgetItem = self.QTableWidget.item(row, column)
        if widgetItem and widgetItem.text:
            rowData.append(widgetItem.text())
        else:
            rowData.append('NULL')
    print(rowData)

    # add this line
    data.append(rowData)

# change these two lines
df = pd.DataFrame(data)
df.to_excel('Table.xlsx', header=False, index=False)