如何删除具有特定列号和行号的所有值？

import pandas as pd

# 读取Excel文件
df = pd.read_excel('data.xlsx')

# 删除特定行和列
row_num = 2  # 行号
col_num = 'B'  # 列号
df.drop(index=row_num, inplace=True)  # 删除行
df.drop(columns=col_num, inplace=True)  # 删除列

# 保存修改后的Excel文件
df.to_excel('data_modified.xlsx', index=False)

import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;

import java.io.*;

public class ExcelManipulation {
    public static void main(String[] args) throws IOException {
        // 读取Excel文件
        FileInputStream fis = new FileInputStream("data.xlsx");
        Workbook workbook = new XSSFWorkbook(fis);
        Sheet sheet = workbook.getSheetAt(0);

        // 删除特定行和列
        int rowNum = 2;  // 行号
        int colNum = 1;  // 列号
        Row row = sheet.getRow(rowNum);
        if (row != null) {
            sheet.removeRow(row);  // 删除行
        }
        for (Row r : sheet) {
            Cell cell = r.getCell(colNum);
            if (cell != null) {
                r.removeCell(cell);  // 删除列
            }
        }

        // 保存修改后的Excel文件
        FileOutputStream fos = new FileOutputStream("data_modified.xlsx");
        workbook.write(fos);
        workbook.close();
        fis.close();
        fos.close();
    }
}

DELETE FROM table_name WHERE row_num = 2 AND col_num = 'B';