Java修改一个excel并导入到另一个excel

package nn;

import java.io.File;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

public class a {
    public static void main(String args[]) {
        try {
            Workbook book = Workbook.getWorkbook(new File("C:\Users\yaru\Desktop\abcd.xls"));
            // 获得第一个工作表对象
            Sheet sheet = book.getSheet(0);

             WritableWorkbook workbook = Workbook.createWorkbook(new File("C:\Users\yaru\Desktop\aaa3.xls"));
            WritableSheet sheet1 = workbook.createSheet("Sheet 1", 0);

            int i=0;
            int rownum = sheet.getRows();
            System.out.println(rownum);

            while(i<rownum)
            {
            Cell cell1 = sheet.getCell(3, i);

            String result = cell1.getContents();
//            System.out.println(result+"123");
            result=result.trim();
//            System.out.println(result+"123");
            Label lbl = new Label(3, i, result);
            sheet1.addCell(lbl);

            sheet1.setName("修改后"); // 给sheet页改名


            i++;
            }


            workbook.write();
            workbook.close();
            book.close();
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}

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