Apache POI -如何在特定单元启动cellIterator？

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

public class CellIteratorExample {
    public static void main(String[] args) {
        try {
            // 创建Workbook对象
            Workbook workbook = new XSSFWorkbook("example.xlsx");

            // 获取工作表
            Sheet sheet = workbook.getSheet("Sheet1");

            // 获取行
            Row row = sheet.getRow(0);

            // 获取单元格迭代器
            Iterator<Cell> cellIterator = row.cellIterator();

            // 遍历单元格
            while (cellIterator.hasNext()) {
                Cell cell = cellIterator.next();
                System.out.println(cell.toString());
            }

            // 关闭Workbook对象
            workbook.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}